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A243248 Number of unlabeled, connected graphs on n vertices with at least one subgraph isomorphic to a bull-graph. 0
0, 0, 0, 0, 12, 86, 773, 10777, 259390, 11705139 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

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

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

Eric Weisstein's World of Mathematics, Bull Graph

FORMULA

a(n) = A001349(n) - A244427(n).

CROSSREFS

Cf. A244427 (no bull subgraphs).

Sequence in context: A104911 A283119 A091119 * A046023 A183721 A180797

Adjacent sequences: A243245 A243246 A243247 * A243249 A243250 A243251

KEYWORD

nonn,more

AUTHOR

Travis Hoppe and Anna Petrone, Jun 01 2014

STATUS

approved

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Last modified November 28 10:39 EST 2022. Contains 358411 sequences. (Running on oeis4.)