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%I #10 Aug 05 2023 07:40:25
%S 0,1,168,59706529,393187796609898300,
%T 640452934762921719920123363204929,
%U 3953182835679963218417936393286738407349843878606730708,1494965251274035901151835612145099097117648125436532015783603339637972099799668843761,567739194652609242674354735113784587341360405864312182081785637035318428980909824192875939414508750046490358101678212604744
%N Number of edge covers in the n X n bishop graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BishopGraph.html">Bishop Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/EdgeCover.html">Edge Cover</a>
%F a(n) = A297049(n) * A297050(n) for n > 1. - _Andrew Howroyd_, Dec 27 2017
%Y Cf. A297049, A297050.
%K nonn
%O 1,3
%A _Eric W. Weisstein_, Dec 24 2017
%E a(6)-a(8) from _Andrew Howroyd_, Dec 27 2017
%E a(9) from A297049(9) * A297050(9) from _Eric W. Weisstein_, Aug 05 2023