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%I #7 Feb 25 2023 20:56:46
%S 0,12,4536,111933456
%N Number of (undirected) paths on the n X n rook 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/RookGraph.html">Rook Graph</a>
%Y Main diagonal of A360877.
%Y Cf. A096970, A234624.
%K nonn,more
%O 1,2
%A _Eric W. Weisstein_, Jun 20 2017