A126739 - OEIS

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A126739

Number of connected graphs on n nodes with chromatic number 5.

0, 0, 0, 0, 1, 4, 46, 809, 27794, 1890221, 248580644 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,6`
	LINKS	`Keith M. Briggs, Combinatorial Graph Theory`
	CROSSREFS	`A diagonal of triangle in A126736.` `Sequence in context: A155652 A197131 A113264 * A191870 A099023 A000657` `Adjacent sequences: A126736 A126737 A126738 * A126740 A126741 A126742`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Feb 16 2007`
	EXTENSIONS	`a(11) from Michael Sollami, Jan 29 2012.`

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Last modified February 17 23:08 EST 2012. Contains 206085 sequences.