A286423 Number of matchings in the n X n white bishop graph.

2, 7, 130, 4207, 1166928, 541240697, 2907639077764, 25886034363696809, 3341096345926174809912, 713738790204487208874991935, 2645105778378736719464340469683304, 16238808907214611705432043192158547965751

Offset: 2

Author

Andrew Howroyd, May 08 2017

Keywords

• nonn

Comments

Matchings are not necessarily perfect matchings.

C# software that can be used to compute this sequence can be found in A270228.

Links

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

Crossrefs

Cf. A286422, A287248, A270228, A216332 (independent vertex sets), A234630 (cycles).