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A079568 Number of unlabeled, connected graphs on n nodes which have no induced subgraph isomorphic to a P5, P5-bar or C5 and are not bipartite nor cobipartite nor split and are primes. 0
0, 0, 0, 0, 0, 0, 6, 34, 206, 1322, 9264, 73181 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

COMMENTS

P5 = path on five nodes. P5-bar = complement of P5. C5 = cycle on five nodes. Cobipartite means having a bipartite complement. G prime if G has no module (homogeneous set.) G split iff G and the complement of G are chordal.

LINKS

Table of n, a(n) for n=1..12.

F. Hüffner, tinygraph, software for generating integer sequences based on graph properties.

CROSSREFS

Sequence in context: A087413 A244829 A059228 * A231058 A218893 A266431

Adjacent sequences:  A079565 A079566 A079567 * A079569 A079570 A079571

KEYWORD

more,nonn

AUTHOR

Jim Nastos, Jan 24 2003

EXTENSIONS

a(10)-a(12) added using tinygraph by Falk Hüffner, Jan 25 2016

STATUS

approved

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Last modified December 5 21:40 EST 2016. Contains 278771 sequences.