%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