Number of n-node unlabeled graphs without endpoints (i.e., no nodes of degree 1).

A004110

Number of n-node unlabeled graphs without endpoints (i.e., no nodes of degree 1).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =16a(6) =78a(7) =588a(8) =8047a(9) =205914a(10) =10014882a(11) =912908876a(12) =154636289460

External references