A243794 Number of simple connected graphs with n nodes that are planar and have no subgraph isomorphic to the open-bowtie graph.

1, 1, 2, 6, 11, 33, 94, 370, 1627, 8895, 56416, 414456, 3382661

Offset: 1

Author

Travis Hoppe and Anna Petrone, Jun 16 2014

Keywords

• nonn
• more

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.
• F. Hüffner, tinygraph, software for generating integer sequences based on graph properties, version 9766535.

Crossrefs

Cf. A242791 (open-bowtie free graphs), A003094 (planar graphs).

Extensions

a(11)-a(13) added using tinygraph by Falk Hüffner, May 12 2019