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A123421 Number of doc-free Berge perfect graphs on n nodes. +0
1
1, 2, 4, 11, 31, 122, 560, 3395, 24891, 215455 (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: A123418 A123419 A123420 this_sequence A123422 A123423 A123424

Sequence in context: A063254 A123443 A123427 this_sequence A123430 A086690 A059305

KEYWORD

nonn

AUTHOR

njas, Oct 18 2006

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Last modified October 11 09:08 EDT 2008. Contains 144831 sequences.

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