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Search: id:A079468
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A079468 Number of unlabeled and connected graphs on n vertices which have no induced subgraph isomorphic to the 'fork' (fork = 4 vertices forming a path with a fifth vertex adjacent only to one of the non-end vertices). +0
1
1, 1, 2, 6, 20, 89, 446, 2724, 19877 (list; graph; listen)
OFFSET

1,3

CROSSREFS

Sequence in context: A115084 A089179 A004104 this_sequence A124382 A000666 A027321

Adjacent sequences: A079465 A079466 A079467 this_sequence A079469 A079470 A079471

KEYWORD

more,nonn

AUTHOR

Jim Nastos (nastos(AT)gmail.com), Jan 14 2003

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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