A084272 - OEIS

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A084272

Number of labeled 4-chromatic (i.e. chromatic number = 4) graphs on n nodes.

0, 0, 0, 1, 65, 5042 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,5`
	LINKS	`Eric Weisstein's World of Mathematics, n-Chromatic Graph`
	CROSSREFS	`Cf. A084270, A084271.` `Sequence in context: A078988 A027535 A110900 * A146756 A202386 A115432` `Adjacent sequences: A084269 A084270 A084271 * A084273 A084274 A084275`
	KEYWORD	`nonn,more`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), May 24, 2003`

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Last modified February 16 06:08 EST 2012. Contains 205860 sequences.