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A243247 Number of unlabeled, connected graphs on n vertices with at least one subgraph isomorphic to an open-bowtie graph. 0
0, 0, 0, 0, 10, 78, 755, 10709, 259123, 11703831, 1006591916, 164058548700, 50335887082115 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,5
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
Eric Weisstein's World of Mathematics, Bull Graph
FORMULA
a(n) = A001349(n) - A242791(n).
CROSSREFS
Sequence in context: A316595 A348314 A056986 * A222701 A283658 A160655
KEYWORD
nonn,more
AUTHOR
Travis Hoppe and Anna Petrone, Jun 01 2014
EXTENSIONS
a(11)-a(13) added using formula by Falk Hüffner, Jan 16 2016
STATUS
approved

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Last modified April 14 14:16 EDT 2024. Contains 371665 sequences. (Running on oeis4.)