Number of unlabeled connected simple graphs with n nodes of degree 4 or less and with at least a cyclic structure and a node of degree one.

A289991

Number of unlabeled connected simple graphs with n nodes of degree 4 or less and with at least a cyclic structure and a node of degree one.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =7a(5) =35a(6) =181a(7) =1027a(8) =6551a(9) =47356a(10) =383353a(11) =3439508a(12) =33796286a(13) =360254030a(14) =4132780425a(15) =50700507116a(16) =661702767423

External references