This polyexon oocurs as a diminishing of the medial segment of stanq. It well can be seen as a partial Stott expansion of jaka.

Incidence matrix according to Dynkin symbol

xo3oo3oo3oo3ox *c3xx&#x   → height = 1/sqrt(3) = 0.577350
(hejak || alt. hejak)

o.3o.3o.3o.3o. *c3o.    & | 864 |    5   10    5 |   10   20   30   30   30 |   10   10   30   10   20   40   30    90   60 |   5  10   20   5   5   25   50   40   90   60   40 |   1  5   5  1   6   15  25   10   50   30   30   5 | 1  1  6  15  10
--------------------------+-----+----------------+--------------------------+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+----------------
x. .. .. .. ..    ..    & |   2 | 2160    *    * |    4    4    0    4    0 |    6    4    6    0    0   12    6    12    0 |   4   6    4   0   0   12   16   12   12   12    0 |   1  4   1  0   4    7  12    4   16    4    6   0 | 1  1  4   7   4
.. .. .. .. ..    x.    & |   2 |    * 4320    * |    0    2    6    0    3 |    0    1    6    3    6    0    0     9   12 |   0   3    6   3   2    0    0    4   18    6   12 |   0  3   2  1   0    0   8    0    5    9    6   3 | 1  0  4   5   1
oo3oo3oo3oo3oo *c3oo&#x   |   2 |    *    * 2160 |    0    0    0    8    6 |    0    0    0    0    0   12   12    24   12 |   0   0    0   0   0    8   24   12   24   24    8 |   0  0   0  0   2    8   8    6   24    8   12   1 | 0  1  2   8   6
--------------------------+-----+----------------+--------------------------+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+----------------
x.3o. .. .. ..    ..    & |   3 |    3    0    0 | 2880    *    *    *    * |    3    1    0    0    0    3    0     0    0 |   3   3    0   0   0    6    3    3    0    0    0 |   1  3   0  0   3    3   6    1    3    0    0   0 | 1  1  3   3   1
x. .. .. .. ..    x.    & |   4 |    2    2    0 |    * 4320    *    *    * |    0    1    3    0    0    0    0     3    0 |   0   3    3   0   0    0    0    3    6    3    0 |   0  3   1  0   0    0   6    0    4    3    3   0 | 1  0  3   4   1
.. .. o. .. .. *c3x.    & |   3 |    0    3    0 |    *    * 8640    *    * |    0    0    1    1    2    0    0     0    2 |   0   1    2   2   1    0    0    0    3    0    4 |   0  2   1  1   0    0   3    0    0    3    1   2 | 1  0  3   2   0
xo .. .. .. ..    ..&#x & |   3 |    1    0    2 |    *    *    * 8640    * |    0    0    0    0    0    3    3     3    0 |   0   0    0   0   0    3    9    3    3    6    0 |   0  0   0  0   1    4   3    3    9    1    3   0 | 0  1  1   4   3
.. .. .. .. ..    xx&#x   |   4 |    0    2    2 |    *    *    *    * 6480 |    0    0    0    0    0    0    0     4    4 |   0   0    0   0   0    0    0    2    8    4    4 |   0  0   0  0   0    0   4    0    4    4    4   1 | 0  0  2   4   1
--------------------------+-----+----------------+--------------------------+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+----------------
x.3o.3o. .. ..    ..    & ♦   4 |    6    0    0 |    4    0    0    0    0 | 2160    *    *    *    *    *    *     *    * |   2   1    0   0   0    2    0    0    0    0    0 |   1  2   0  0   2    1   2    0    0    0    0   0 | 1  1  2   1   0
x.3o. .. .. ..    x.    & ♦   6 |    6    3    0 |    2    3    0    0    0 |    * 1440    *    *    *    *    *     *    * |   0   3    0   0   0    0    0    3    0    0    0 |   0  3   0  0   0    0   6    0    3    0    0   0 | 1  0  3   3   1
x. .. o. .. .. *c3x.    & ♦   6 |    3    6    0 |    0    3    2    0    0 |    *    * 4320    *    *    *    *     *    * |   0   1    2   0   0    0    0    0    2    0    0 |   0  2   1  0   0    0   2    0    0    2    1   0 | 1  0  2   2   0
.. o.3o. .. .. *c3x.    & ♦   4 |    0    6    0 |    0    0    4    0    0 |    *    *    * 2160    *    *    *     *    * |   0   1    0   2   0    0    0    0    0    0    2 |   0  2   0  1   0    0   2    0    0    1    0   2 | 1  0  3   1   0
.. .. o.3o. .. *c3x.    & ♦   4 |    0    6    0 |    0    0    4    0    0 |    *    *    *    * 4320    *    *     *    * |   0   0    1   1   1    0    0    0    0    0    1 |   0  1   1  1   0    0   1    0    0    1    0   1 | 1  0  2   1   0
xo3oo .. .. ..    ..&#x & ♦   4 |    3    0    3 |    1    0    0    3    0 |    *    *    *    *    * 8640    *     *    * |   0   0    0   0   0    2    2    1    0    0    0 |   0  0   0  0   1    2   2    1    2    0    0   0 | 0  1  1   2   1
xo .. .. .. ox    ..&#x   ♦   4 |    2    0    4 |    0    0    0    4    0 |    *    *    *    *    *    * 6480     *    * |   0   0    0   0   0    0    4    0    0    2    0 |   0  0   0  0   0    2   0    2    4    0    1   0 | 0  1  0   2   2
xo .. .. .. ..    xx&#x & ♦   6 |    2    3    4 |    0    1    0    2    2 |    *    *    *    *    *    *    * 12960    * |   0   0    0   0   0    0    0    1    2    2    0 |   0  0   0  0   0    0   2    0    3    1    2   0 | 0  0  1   3   1
.. .. oo .. .. *c3xx&#x   ♦   6 |    0    6    3 |    0    0    2    0    3 |    *    *    *    *    *    *    *     * 8640 |   0   0    0   0   0    0    0    0    2    0    2 |   0  0   0  0   0    0   2    0    0    2    1   1 | 0  0  2   2   0
--------------------------+-----+----------------+--------------------------+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+----------------
x.3o.3o.3o. ..    ..    & ♦   5 |   10    0    0 |   10    0    0    0    0 |    5    0    0    0    0    0    0     0    0 | 864   *    *   *   *    *    *    *    *    *    * |   1  1   0  0   1    0   0    0    0    0    0   0 | 1  1  1   0   0
x.3o.3o. .. .. *c3x.    & ♦  20 |   30   30    0 |   20   30   20    0    0 |    5   10   10    5    0    0    0     0    0 |   * 432    *   *   *    *    *    *    *    *    * |   0  2   0  0   0    0   2    0    0    0    0   0 | 1  0  2   1   0
x. .. o.3o. .. *c3x.    & ♦   8 |    4   12    0 |    0    6    8    0    0 |    0    0    4    0    2    0    0     0    0 |   *   * 2160   *   *    *    *    *    *    *    * |   0  1   1  0   0    0   0    0    0    1    0   0 | 1  0  1   1   0
.. o.3o.3o. .. *c3x.    & ♦   8 |    0   24    0 |    0    0   32    0    0 |    0    0    0    8    8    0    0     0    0 |   *   *    * 540   *    *    *    *    *    *    * |   0  1   0  1   0    0   0    0    0    0    0   1 | 1  0  2   0   0
.. .. o.3o.3o. *c3x.    & ♦   5 |    0   10    0 |    0    0   10    0    0 |    0    0    0    0    5    0    0     0    0 |   *   *    *   * 864    *    *    *    *    *    * |   0  0   1  1   0    0   1    0    0    0    0   0 | 1  0  1   1   0
xo3oo3oo .. ..    ..&#x & ♦   5 |    6    0    4 |    4    0    0    6    0 |    1    0    0    0    0    4    0     0    0 |   *   *    *   *   * 4320    *    *    *    *    * |   0  0   0  0   1    1   1    0    0    0    0   0 | 0  1  1   1   0
xo3oo .. .. ox    ..&#x & ♦   5 |    4    0    6 |    1    0    0    9    0 |    0    0    0    0    0    2    3     0    0 |   *   *    *   *   *    * 8640    *    *    *    * |   0  0   0  0   0    1   0    1    1    0    0   0 | 0  1  0   1   1
xo3oo .. .. ..    xx&#x & ♦   8 |    6    4    6 |    2    3    0    6    3 |    0    1    0    0    0    2    0     3    0 |   *   *    *   *   *    *    * 4320    *    *    * |   0  0   0  0   0    0   2    0    2    0    0   0 | 0  0  1   2   1
xo .. oo .. .. *c3xx&#x & ♦   9 |    3    9    6 |    0    3    3    3    6 |    0    0    1    0    0    0    0     3    2 |   *   *    *   *   *    *    *    * 8640    *    * |   0  0   0  0   0    0   1    0    0    1    1   0 | 0  0  1   2   0
xo .. .. .. ox    xx&#x   ♦   8 |    4    4    8 |    0    2    0    8    4 |    0    0    0    0    0    0    2     4    0 |   *   *    *   *   *    *    *    *    * 6480    * |   0  0   0  0   0    0   0    0    2    0    1   0 | 0  0  0   2   1
.. oo3oo .. .. *c3xx&#x & ♦   8 |    0   12    4 |    0    0    8    0    6 |    0    0    0    1    1    0    0     0    4 |   *   *    *   *   *    *    *    *    *    * 4320 |   0  0   0  0   0    0   1    0    0    1    0   1 | 0  0  2   1   0
--------------------------+-----+----------------+--------------------------+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+----------------
x.3o.3o.3o.3o.    ..    & ♦   6 |   15    0    0 |   20    0    0    0    0 |   15    0    0    0    0    0    0     0    0 |   6   0    0   0   0    0    0    0    0    0    0 | 144  *   *  *   *    *   *    *    *    *    *   * | 1  1  0   0   0
x.3o.3o.3o. .. *c3x.    & ♦  80 |  160  240    0 |  160  240  320    0    0 |   80   80  160   80   80    0    0     0    0 |  16  16   40  10   0    0    0    0    0    0    0 |   * 54   *  *   *    *   *    *    *    *    *   * | 1  0  1   0   0
x. .. o.3o.3o. *c3x.    & ♦  10 |    5   20    0 |    0   10   20    0    0 |    0    0   10    0   10    0    0     0    0 |   0   0    5   0   2    0    0    0    0    0    0 |   *  * 432  *   *    *   *    *    *    *    *   * | 1  0  0   1   0
.. o.3o.3o.3o. *c3x.    & ♦  16 |    0   80    0 |    0    0  160    0    0 |    0    0    0   40   80    0    0     0    0 |   0   0    0  10  16    0    0    0    0    0    0 |   *  *   * 54   *    *   *    *    *    *    *   * | 1  0  1   0   0
xo3oo3oo3oo ..    ..&#x & ♦   6 |   10    0    5 |   10    0    0   10    0 |    5    0    0    0    0   10    0     0    0 |   1   0    0   0   0    5    0    0    0    0    0 |   *  *   *  * 864    *   *    *    *    *    *   * | 0  1  1   0   0
xo3oo3oo .. ox    ..&#x & ♦   6 |    7    0    8 |    4    0    0   16    0 |    1    0    0    0    0    8    6     0    0 |   0   0    0   0   0    2    4    0    0    0    0 |   *  *   *  *   * 2160   *    *    *    *    *   * | 0  1  0   1   0
xo3oo3oo .. .. *c3xx&#x & ♦  25 |   30   40   20 |   20   30   30   30   30 |    5   10   10    5    5   20    0    30   20 |   0   1    0   0   1    5    0   10   10    0    5 |   *  *   *  *   *    * 864    *    *    *    *   * | 0  0  1   1   0
xo3oo .. oo3ox    ..&#x   ♦   6 |    6    0    9 |    2    0    0   18    0 |    0    0    0    0    0    6    9     0    0 |   0   0    0   0   0    0    6    0    0    0    0 |   *  *   *  *   *    *   * 1440    *    *    *   * | 0  1  0   0   1
xo3oo .. .. ox    xx&#x & ♦  10 |    8    5   12 |    2    4    0   18    6 |    0    1    0    0    0    4    6     9    0 |   0   0    0   0   0    0    2    2    0    3    0 |   *  *   *  *   *    *   *    * 4320    *    *   * | 0  0  0   1   1
xo .. oo3oo .. *c3xx&#x & ♦  12 |    4   18    8 |    0    6   12    4   12 |    0    0    4    1    2    0    0     6    8 |   0   0    1   0   0    0    0    0    4    0    2 |   *  *   *  *   *    *   *    *    * 2160    *   * | 0  0  1   1   0
xo .. oo .. ox *c3xx&#x   ♦  12 |    6   12   12 |    0    6    4   12   12 |    0    0    2    0    0    0    3    12    4 |   0   0    0   0   0    0    0    0    4    3    0 |   *  *   *  *   *    *   *    *    *    * 2160   * | 0  0  0   2   0
.. oo3oo3oo .. *c3xx&#x   ♦  16 |    0   48    8 |    0    0   64    0   24 |    0    0    0   16   16    0    0     0   32 |   0   0    0   2   0    0    0    0    0    0   16 |   *  *   *  *   *    *   *    *    *    *    * 270 | 0  0  2   0   0
--------------------------+-----+----------------+--------------------------+-----------------------------------------------+----------------------------------------------------+----------------------------------------------------+----------------
x.3o.3o.3o.3o. *c3x.    & ♦ 432 | 1080 2160    0 | 1440 2160 4320    0    0 | 1080  720 2160 1080 2160    0    0     0    0 | 432 216 1080 270 432    0    0    0    0    0    0 |  72 27 216 27   0    0   0    0    0    0    0   0 | 2  *  *   *   *
xo3oo3oo3oo3ox    ..&#x   ♦  12 |   30    0   30 |   40    0    0  120    0 |   30    0    0    0    0  120   90     0    0 |  12   0    0   0   0   60   12    0    0    0    0 |   2  0   0  0  12   30   0   20    0    0    0   0 | * 72  *   *   *
xo3oo3oo3oo .. *c3xx&#x & ♦  96 |  160  320   80 |  160  240  480  160  240 |   80   80  160  120  160  160    0   240  320 |  16  16   40  20  16   80    0   80  160    0  160 |   0  1   0  1  16    0  16    0    0   40    0  10 | *  * 54   *   *
xo3oo3oo .. ox *c3xx&#x & ♦  30 |   35   50   40 |   20   40   40   80   60 |    5   10   20    5   10   40   30    90   40 |   0   1    5   0   2   10   20   20   40   30   10 |   0  0   1  0   0    5   2    0   10    5   10   0 | *  *  * 432   *
xo3oo .. oo3ox    xx&#x   ♦  12 |   12    6   18 |    4    6    0   36    9 |    0    2    0    0    0   12   18    18    0 |   0   0    0   0   0    0   12    6    0    9    0 |   0  0   0  0   0    0   0    2    6    0    0   0 | *  *  *   * 720