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A243558 Number of simple connected graphs with n nodes that are planar and have no subgraph isomorphic to bull graph. 0
1, 1, 2, 6, 9, 25, 76, 302, 1360, 7606, 49313, 368568, 3046968 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..13.

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, 2014

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

CROSSREFS

Cf. A244427 (no bull subgraphs), A003094 (planar graphs).

Sequence in context: A056879 A006746 A205875 * A244427 A121624 A103019

Adjacent sequences:  A243555 A243556 A243557 * A243559 A243560 A243561

KEYWORD

nonn,more

AUTHOR

Travis Hoppe and Anna Petrone, Jun 06 2014

EXTENSIONS

a(11)-a(13) added using tinygraph by Falk Hüffner, May 09 2019

STATUS

approved

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Last modified May 12 10:54 EDT 2021. Contains 343821 sequences. (Running on oeis4.)