A243793 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

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

(list; graph; refs; listen; history; text; internal format)

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