%I #9 Feb 16 2025 08:33:21
%S 0,3,106,17367,24601058,638520866656,169298265484672524,
%T 1292856744880357036357430
%N Numbers of undirected cycles in the n X n bishop graph.
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/BishopGraph.html">Bishop Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GraphCycle.html">Graph Cycle</a>
%F a(n) = A234603(n) + A234630(n).
%K nonn,changed
%O 2,2
%A _Eric W. Weisstein_, Dec 28 2013
%E a(7) corrected and a(8)-a(9) from _Andrew Howroyd_, May 08 2017