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Number of (undirected) Hamiltonian paths in the n X n black bishop graph.
1

%I #6 May 06 2019 20:56:25

%S 0,1,4,96,25376,32132352,1295557991168,229067542255136768,

%T 2627612220112334649458688

%N Number of (undirected) Hamiltonian paths in the n X n black bishop graph.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BlackBishopGraph.html">Black Bishop Graph</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/HamiltonianPath.html">Hamiltonian Path</a>

%K nonn,hard,more

%O 1,3

%A _Eric W. Weisstein_, May 06 2019