Acronym ...
Name hyperbolic order 5 pentachoric tetracomb
Circumradius sqrt[(1-sqrt(5))/8] = 0.393076 i
Dual o3o3o3o5x
Confer
general polytopal classes:
subsymmetrical diminishings  
External
links
wikipedia

Incidence matrix according to Dynkin symbol

x3o3o3o5o   (N → ∞)

. . . . . | N  120 |  720 | 1200 |  600
----------+---+-----+------+------+-----
x . . . . | 2 | 60N    12 |   30 |   20
----------+---+-----+------+------+-----
x3o . . . | 3 |   3 | 240N |    5 |    5
----------+---+-----+------+------+-----
x3o3o . .  4 |   6 |    4 | 300N |    2
----------+---+-----+------+------+-----
x3o3o3o .  5 |  10 |   10 |    5 | 120N

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