Acronym n,ex-dip
Name n-gon - hexacosachoron duoprism
Especially trex (n=3)   squex (n=4)  

Incidence matrix according to Dynkin symbol

xno x3o3o5o   (n>2)

. . . . . . | 120n |    2   12 |   1   24    30 |  12    60   20 |   30   40 1 |  20 2
------------+------+-----------+----------------+----------------+-------------+------
x . . . . . |    2 | 120n    * |   1   12     0 |  12    30    0 |   30   20 0 |  20 1
. . x . . . |    2 |    * 720n |   0    2     5 |   1    10    5 |    5   10 1 |   5 2
------------+------+-----------+----------------+----------------+-------------+------
xno . . . . |    n |    n    0 | 120    *     *   12     0    0 |   30    0 0 |  20 0
x . x . . . |    4 |    2    2 |   * 720n     * |   1     5    0 |    5    5 0 |   5 1
. . x3o . . |    3 |    0    3 |   *    * 1200n |   0     2    2 |    1    4 1 |   2 2
------------+------+-----------+----------------+----------------+-------------+------
xno x . . .    2n |   2n    n |   2    n     0 | 720     *    * |    5    0 0 |   5 0
x . x3o . .     6 |    3    6 |   0    3     2 |   * 1200n    * |    1    2 0 |   2 1
. . x3o3o .     4 |    0    6 |   0    0     4 |   *     * 600n |    0    2 1 |   1 2
------------+------+-----------+----------------+----------------+-------------+------
xno x3o . .    3n |   3n   3n |   3   3n     n |   3     n    0 | 1200    * * |   2 0
x . x3o3o .     8 |    4   12 |   0    6     8 |   0     4    2 |    * 600n * |   1 1
. . x3o3o5o   120 |    0  720 |   0    0  1200 |   0     0  600 |    *    * n |   0 2
------------+------+-----------+----------------+----------------+-------------+------
xno x3o3o .    4n |   4n   6n |   4   6n    4n |   6    4n    n |    4    n 0 | 600 *
x . x3o3o5o   240 |  120 1440 |   0  720  2400 |   0  1200 1200 |    0  600 2 |   * n

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