Acronym sha
Name square hemiapeirogonal tesselation
Vertex figure [4/3,∞,4,∞]/0

Incidence matrix

(N→∞)

2NN |   4 |  2  2
----+-----+------
  2 | 4NN |  1  1
----+-----+------
  4 |   4 | NN  *
♦ N |   N |  * 4N

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