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Search: id:A079569
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| A079569 |
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Number of unlabeled, connected graphs on n vertices which have no induced subgraph isomorphic to a P5 and are chordal and prime. |
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OFFSET
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1,6
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COMMENT
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P5 = path on five vertices. G chordal iff every cycle of size 4 or more has a chord. G prime if it has no module (homogeneous set.)
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REFERENCES
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A. Brandstadt, F. Dragan, H.O. Le, R. Mosca, "New Graph Classes of Bounded Clique-Width," manuscript, 2002.
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CROSSREFS
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Adjacent sequences: A079566 A079567 A079568 this_sequence A079570 A079571 A079572
Sequence in context: A110614 A019045 A066886 this_sequence A101553 A032122 A064678
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KEYWORD
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more,nonn
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AUTHOR
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Jim Nastos (nastos(AT)gmail.com), Jan 24 2003
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