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Number of (undirected) paths in the n X n knight graph.
1

%I #7 Jul 01 2017 23:04:48

%S 0,0,56,14980,19005336,278982789260

%N Number of (undirected) paths in the n X n knight graph.

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

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

%Y Cf. A234623, A212715, A165134, A001230.

%K nonn,more

%O 1,3

%A _Eric W. Weisstein_, Jun 28 2017

%E a(5)-a(6) from _Andrew Howroyd_, Jul 01 2017