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A287892 Unrooted unlabeled 4-cactus graphs on 3n+1 nodes. 0
0, 1, 1, 3, 7, 25, 88, 366, 1583, 7336, 34982, 172384 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..11.

Maryam Bahrani and Jérémie Lumbroso, Enumerations, Forbidden Subgraph Characterizations, and the Split-Decomposition, arXiv:1608.01465 [math.CO], 2016.

CROSSREFS

Sequence in context: A148738 A148739 A129084 * A002870 A096579 A120540

Adjacent sequences:  A287889 A287890 A287891 * A287893 A287894 A287895

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jun 21 2017

STATUS

approved

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Last modified January 18 16:27 EST 2020. Contains 331011 sequences. (Running on oeis4.)