Number of simple graphs on n labeled nodes, where each maximally connected subgraph is either a tree or a cycle, also row sums of A144163, A215861.

A144164

Number of simple graphs on n labeled nodes, where each maximally connected subgraph is either a tree or a cycle, also row sums of A144163, A215861.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =8a(4) =45a(5) =338a(6) =3304a(7) =40485a(8) =602075a(9) =10576466a(10) =214622874a(11) =4941785261a(12) =127282939615

External references