A243793 Number of simple connected graphs with n nodes that are not integral and have no subgraph isomorphic to the open-bowtie graph.

0, 0, 1, 4, 10, 30, 97, 405, 1957, 12725

Offset

1,4

Links

Table of n, a(n) for n=1..10.

Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs

Crossrefs

Cf. A242791 (open-bowtie-free graphs), A241842 (non-integral graphs).

Sequence in context: A036674 A006357 A114946 * A001551 A363509 A067142

Adjacent sequences: A243790 A243791 A243792 * A243794 A243795 A243796

Keyword

nonn,more

Author

Travis Hoppe and Anna Petrone, Jun 16 2014

Status

approved