A123431 - OEIS

A123431

Number of LGBIP perfect graphs on n nodes.

1, 2, 4, 9, 17, 39, 84, 200, 484, 1263 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	LINKS	`Table of n, a(n) for n=1..10.` `S. Hougardy, Home Page` `S. Hougardy, Classes of perfect graphs, Discr. Math. 306 (2006), 2529-2571.`
	CROSSREFS	`Sequence in context: A136326 A059973 A030035 * A049961 A321736 A283315` `Adjacent sequences: A123428 A123429 A123430 * A123432 A123433 A123434`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane, Oct 18 2006`
	STATUS	`approved`

Last modified April 1 12:16 EDT 2023. Contains 361691 sequences. (Running on oeis4.)