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A123422 Number of elementary perfect graphs on n nodes. +0
1
1, 2, 4, 10, 25, 79, 253, 936, 3601, 15486 (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: A123419 A123420 A123421 this_sequence A123423 A123424 A123425

Sequence in context: A005817 A124419 A006901 this_sequence A123413 A085633 A111564

KEYWORD

nonn

AUTHOR

njas, Oct 18 2006

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Last modified October 12 11:54 EDT 2008. Contains 144829 sequences.

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