id:A123469 - OEIS Search Results

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Number of 2-overlap triangle-free perfect graphs on n nodes.

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1, 2, 4, 11, 33, 140, 586, 2379, 9495, 38436 (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	`Sequence in context: A123463 A123468 A123415 this_sequence A123448 A039707 A005470` `Adjacent sequences: A123466 A123467 A123468 this_sequence A123470 A123471 A123472`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Oct 18 2006`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.