Acronym ...
Name hyperbolic x3o3o5o3*a tesselation
 
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Circumradius sqrt[(7-4 sqrt(5))/31] = 0.250437 i
Vertex figure
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Incidence matrix according to Dynkin symbol

x3o3o5o3*a   (N → ∞)

. . . .    |  N   60 |  60  60 | 20 30 12
-----------+----+-----+---------+---------
x . . .    |  2 | 30N |   2   2 |  1  2  1
-----------+----+-----+---------+---------
x3o . .    |  3 |   3 | 20N   * |  1  1  0
x . . o3*a |  3 |   3 |   * 20N |  0  1  1
-----------+----+-----+---------+---------
x3o3o .      4 |   6 |   4   0 | 5N  *  *
x3o . o3*a   6 |  12 |   4   4 |  * 5N  *
x . o5o3*a  12 |  30 |   0  20 |  *  *  N

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