Number of unlabeled, connected graphs on n vertices with at least one induced subgraph isomorphic to a K_4, where K_4 is the complete graph on four vertices.
A243244
Number of unlabeled, connected graphs on n vertices with at least one induced subgraph isomorphic to a K_4, where K_4 is the complete graph on four vertices.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =4a(5) =30a(6) =317a(7) =5511a(8) =165165a(9) =8932499a(10) =870814993a(11) =153082769374
External references
- oeis: A243244