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A079567
Number of unlabeled, connected graphs on n vertices which have no induced subgraph isomorphic to a P5, P5-bar or C5 and are not bipartite nor cobipartite and are primes.
0
0, 0, 0, 0, 1, 4, 18, 85, 455, 2870, 21280, 192548
OFFSET
1,6
COMMENTS
P5 = path on five vertices. P5-bar = complement of P5. C5 = cycle on five vertices. Cobipartite means having a bipartite complement. G prime if G has no module (homogeneous set.)
LINKS
F. Hüffner, tinygraph, software for generating integer sequences based on graph properties.
CROSSREFS
Sequence in context: A046885 A247637 A055834 * A030278 A318217 A341248
KEYWORD
more,nonn
AUTHOR
Jim Nastos, Jan 24 2003
EXTENSIONS
a(10)-a(12) added using tinygraph by Falk Hüffner, Jan 23 2016
STATUS
approved