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A123463 Number of 3-overlap triangle-free perfect graphs on n nodes. +0
1
1, 2, 4, 11, 33, 136, 532, 1783, 5549, 17906 (list; graph; listen)
OFFSET

1,2
REFERENCES

S. Hougardy, Classes of perfect graphs, Discr. Math. 306 (2006), 2529-2571.

LINKS

S. Hougardy, Home Page

CROSSREFS

Adjacent sequences: A123460 A123461 A123462 this_sequence A123464 A123465 A123466

Sequence in context: A123444 A123473 A123462 this_sequence A123468 A123415 A123469

KEYWORD

nonn

AUTHOR

njas, Oct 18 2006

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

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