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A243568 Number of simple connected graphs with n nodes that are have no subgraph isomorphic to diamond graph or the bull graph. 0
1, 1, 2, 4, 9, 26, 80, 340, 1690, 11432 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs

CROSSREFS

Cf. A242790 (no diamond subgraphs), A244427 (no bull subgraphs).

Sequence in context: A125799 A220880 A188669 * A087378 A004252 A114957

Adjacent sequences:  A243565 A243566 A243567 * A243569 A243570 A243571

KEYWORD

nonn,more

AUTHOR

Travis Hoppe and Anna Petrone, Jun 06 2014

STATUS

approved

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Last modified February 20 20:53 EST 2019. Contains 320345 sequences. (Running on oeis4.)