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A243327
Number of simple connected graphs with n nodes that are K_4 free and not integral.
0
0, 0, 1, 4, 15, 77, 531, 5597, 95900, 2784034
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
COMMENTS
K_4 is the complete graph on four vertices.
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.
CROSSREFS
Cf. A241842 (non-integral graphs), A079574 (K_4-free graphs).
Sequence in context: A178887 A002467 A332652 * A179511 A111726 A090376
Adjacent sequences: A243324 A243325 A243326 * A243328 A243329 A243330
KEYWORD
nonn,more
AUTHOR
Travis Hoppe and Anna Petrone, Jun 03 2014
STATUS
approved

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Last modified September 28 11:26 EDT 2024. Contains 376292 sequences.
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