A243327 Number of simple connected graphs with n nodes that are K_4 free and not integral.

0, 0, 1, 4, 15, 77, 531, 5597, 95900, 2784034

Offset: 1

Author

Travis Hoppe and Anna Petrone, Jun 03 2014

Keywords

• nonn
• more

Comments

K_4 is the complete graph on four vertices.

Links

• Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs
• T. Hoppe and A. Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644 [math.CO], 2014.

Crossrefs

Cf. A241842 (non-integral graphs), A079574 (K_4-free graphs).