A287652 Number of simple disconnected perfect matching graphs on 2n nodes.

0, 1, 6, 116, 10888

Offset: 1

Author

Eric W. Weisstein, May 29 2017

Keywords

• nonn
• more

Links

• Eric Weisstein's World of Mathematics, Disconnected Graph
• Eric Weisstein's World of Mathematics, Perfect Matching

Crossrefs

Cf. A218462 (simple not-necessarily connected perfect matching graphs).

Cf. A218463 (connected perfect matching graphs).

Formula

a(n) = A218462(n) - A218463(n).