A287248 Number of matchings in the n X n bishop graph.

1, 4, 84, 16900, 39932844, 1361720957184, 774585118899294568, 8454365006540284439239696, 1984702974673190711327564424138048, 11162924792761237570313905721795529333447744, 1649914801339506800304019030963996680128410488784164960, 6996584578812582654135225585307693014250183123864863361126056356416, 919794116459365136444247186352581193250325236478988411540394596132809895149151936

Offset: 1

Author

Eric W. Weisstein, May 22 2017

Keywords

• nonn

Links

• Eric Weisstein's World of Mathematics, Bishop Graph
• Eric Weisstein's World of Mathematics, Independent Edge Set
• Eric Weisstein's World of Mathematics, Matching

Crossrefs

Cf. A286422, A286423.

Formula

a(n) = A286422(n) * A286423(n). - Andrew Howroyd, May 23 2017