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A123428 Number of interval perfect graphs on n nodes. 0
1, 2, 4, 10, 27, 92, 369, 1807, 10344, 67659 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Is this the same as A005975? - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 18 2008

REFERENCES

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

LINKS

S. Hougardy, Home Page

CROSSREFS

Sequence in context: A148108 A057786 A007776 * A005975 A048193 A123411

Adjacent sequences:  A123425 A123426 A123427 * A123429 A123430 A123431

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Oct 18 2006

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.