Acronym sididdip Name snub-icosidodecadodecahedron prism Colonel of regiment (is itself not locally convex, but no other uniform polyhedral members) Externallinks

As abstract polytope sididdip is isomorphic to gisdiddip, thereby replacing (prograde) pentagons by prograde pentagrams, while retrrograde pentagrams keep unchanged, resp. replacing pip by further stip and sided by gisdid.

Incidence matrix according to Dynkin symbol

```x s5/3s3s5*b

. demi( .   . .    ) | 120 |  1   2   2   2 |  2  2  2  1  1  1   3 |  1  1  1  3 1
---------------------+-----+----------------+-----------------------+--------------
x demi( .   . .    ) |   2 | 60   *   *   * |  2  2  2  0  0  0   0 |  1  1  1  3 0
. sefa( s5/3s .    ) |   2 |  * 120   *   * |  1  0  0  1  0  0   1 |  1  0  0  1 1
. sefa( s   . s5*b ) |   2 |  *   * 120   * |  0  1  0  0  1  0   1 |  0  1  0  1 1
. sefa( .   s3s    ) |   2 |  *   *   * 120 |  0  0  1  0  0  1   1 |  0  0  1  1 1
---------------------+-----+----------------+-----------------------+--------------
x sefa( s5/3s .    ) |   4 |  2   2   0   0 | 60  *  *  *  *  *   * |  1  0  0  1 0
x sefa( s   . s5*b ) |   4 |  2   0   2   0 |  * 60  *  *  *  *   * |  0  1  0  1 0
x sefa( .   s3s    ) |   4 |  2   0   0   2 |  *  * 60  *  *  *   * |  0  0  1  1 0
.       s5/3s .      ♦   5 |  0   5   0   0 |  *  *  * 24  *  *   * |  1  0  0  0 1
.       s   . s5*b   ♦   5 |  0   0   5   0 |  *  *  *  * 24  *   * |  0  1  0  0 1
.       .   s3s      ♦   3 |  0   0   0   3 |  *  *  *  *  * 40   * |  0  0  1  0 1
. sefa( s5/3s3s5*b ) |   3 |  0   1   1   1 |  *  *  *  *  *  * 120 |  0  0  0  1 1
---------------------+-----+----------------+-----------------------+--------------
x       s5/3s .      ♦  10 |  5  10   0   0 |  5  0  0  2  0  0   0 | 12  *  *  * *
x       s   . s5*b   ♦  10 |  5   0  10   0 |  0  5  0  0  2  0   0 |  * 12  *  * *
x       .   s3s      ♦   6 |  3   0   0   6 |  0  0  3  0  0  2   0 |  *  * 20  * *
x sefa( s5/3s3s5*b ) ♦   6 |  3   2   2   2 |  1  1  1  0  0  0   2 |  *  *  * 60 *
.       s5/3s3s5*b   ♦  60 |  0  60  60  60 |  0  0  0 12 12 20  60 |  *  *  *  * 2
```