Number of simple connected graphs with n nodes that have no subgraph isomorphic to bull graph or K_4.
A243559
Number of simple connected graphs with n nodes that have no subgraph isomorphic to bull graph or K_4.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =9a(5) =26a(6) =80a(7) =340a(8) =1690a(9) =11432a(10) =101142a(11) =1228608a(12) =20329150
External references
- oeis: A243559