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A079567
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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.
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0
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0, 0, 0, 0, 1, 4, 18, 85, 455, 2870, 21280, 192548
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OFFSET
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1,6
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COMMENTS
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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.)
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LINKS
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F. Hüffner, tinygraph, software for generating integer sequences based on graph properties.
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CROSSREFS
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KEYWORD
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more,nonn
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AUTHOR
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EXTENSIONS
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a(10)-a(12) added using tinygraph by Falk Hüffner, Jan 23 2016
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STATUS
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approved
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