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A123458 Number of split graphs on n nodes that are perfect. +0
1
1, 2, 4, 9, 21, 56, 164, 557, 2223, 10766 (list; graph; listen)
OFFSET

1,2

COMMENT

Is this the same as A048194? - 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: A006080 A148074 A130866 this_sequence A048194 A148075 A058718

Adjacent sequences: A123455 A123456 A123457 this_sequence A123459 A123460 A123461

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Oct 18 200, Jul 03 2008

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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