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a(n) is the number of polyedges with n edges in the {4,5} tessellation of the hyperbolic plane.
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%I #5 Nov 02 2025 08:02:38

%S 1,2,8,33,187,1117,7355,49958

%N a(n) is the number of polyedges with n edges in the {4,5} tessellation of the hyperbolic plane.

%C A {4,5} polyedge is a connected graph made up of the edges of squares in the order-5 square tiling of the hyperbolic plane.

%C This sequence was calculated in the context of a project in collaboration with Érika Roldán, and Rosemberg Toalá-Enríquez.

%Y Cf. A119611, A019988.

%K nonn,more

%O 1,2

%A _John Mason_, Nov 02 2025