id:A126756 - OEIS Search Results

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Number of biconnected triangle-free graphs on n nodes with chromatic number 3.

+0
1

0, 0, 0, 0, 1, 1, 8, 36, 269, 2418, 29216, 458445, 9373692, 249530113 (list; graph; listen)

	OFFSET	`1,7`
	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	`Sequence in context: A032770 A032794 A000757 this_sequence A058823 A050536 A110215` `Adjacent sequences: A126753 A126754 A126755 this_sequence A126757 A126758 A126759`
	KEYWORD	`nonn`
	AUTHOR	`njas, Feb 18 2007`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.