id:A126753 - OEIS Search Results

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

+0
1

0, 0, 0, 0, 1, 3, 34, 627, 23262, 1686975 (list; graph; listen)

	OFFSET	`1,6`
	COMMENT	`It is possible that the definition should say "connected" rather than "biconnected". Should be rechecked! - Max Alekseyev and Brendan McKay, Jun 17 2008`
	LINKS	`Keith M. Briggs, Combinatorial Graph Theory`
	CROSSREFS	`A diagonal of triangle in A126749.` `Sequence in context: A045727 A105713 A143638 this_sequence A047794 A109521 A069718` `Adjacent sequences: A126750 A126751 A126752 this_sequence A126754 A126755 A126756`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Feb 18 2007`

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