A123459 - OEIS

The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

A123459

Number of strict opposition perfect graphs on n nodes.

1, 2, 4, 11, 33, 145, 840, 6757, 66677, 742244 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	REFERENCES	`S. Hougardy, Classes of perfect graphs, Discr. Math. 306 (2006), 2529-2571.`
	LINKS	`Table of n, a(n) for n=1..10.` `S. Hougardy, Home Page`
	CROSSREFS	`Sequence in context: A123416 A123406 A123453 * A123426 A277204 A123437` `Adjacent sequences: A123456 A123457 A123458 * A123460 A123461 A123462`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane, Oct 18 2006`
	STATUS	`approved`

Last modified April 1 08:24 EDT 2020. Contains 333159 sequences. (Running on oeis4.)