Acronym ...
Name vertex figure of cellidishexateron
Cross sections
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Circumradius sqrt(2/3) = 0.816497
General of army triddip
Pattern
a   b
 c            g   h
               i
d   e
 f

Incidence matrix

9 | 2 2  4 | 1  6  6 4 | 2 2 5
--+--------+-----------+------
2 | 9 *  * | 0  2  0 2 | 0 2 2  ab x
2 | * 9  * | 1  0  2 2 | 2 1 2  ad x
2 | * * 18 | 0  2  2 0 | 1 1 2  ae q
--+--------+-----------+------
3 | 0 3  0 | 3  *  * * | 2 0 0  adg xxx verf(tet)
3 | 1 0  2 | * 18  * * | 0 1 1  abf xqq verf(trip)
3 | 0 1  2 | *  * 18 * | 1 0 1  adg xqq verf(trip)
4 | 2 2  0 | *  *  * 9 | 0 1 1  abed xxxx verf(oct)
--+--------+-----------+------
6 | 0 6  6 | 2  0  6 0 | 3 * *  abdegh verf(firp)
6 | 6 3  6 | 0  6  0 3 | * 3 *  abcdef verf(pinnip)
5 | 2 2  4 | 0  2  2 1 | * * 9  abdei verf(ope)

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