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Number of edges of the root-n Waterman polyhedron of void-center type as defined in A119870.
4

%I #2 Mar 31 2012 10:29:10

%S 12,12,36,36,84,48,36,36,96,108,72,72,60,156,120,120,84,72,144,144,

%T 228,228,120,120,120,156,144,144,216,120,252,252,144,264,168,168,204,

%U 192,288,288,240,192,276,276,312,288,168,168,192,252,360,360,336,288,192

%N Number of edges of the root-n Waterman polyhedron of void-center type as defined in A119870.

%C For more information see A119870.

%Y Cf. A119869, A119874, A119872 [edges of Waterman polyhedron of basic type].

%K nonn

%O 0,1

%A _Hugo Pfoertner_, Jun 05 2006