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Search: id:A126729
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A126729 Number of graphs on n nodes with chromatic number 3. +0
1
0, 0, 1, 5, 14, 46, 123, 375, 1061, 3331 (list; graph; listen)
OFFSET

1,4
LINKS

Keith M. Briggs, Combinatorial Graph Theory

CROSSREFS

A diagonal of triangle in A123962.

Sequence in context: A125246 A100059 A077335 this_sequence A098730 A081496 A075827

Adjacent sequences: A126726 A126727 A126728 this_sequence A126730 A126731 A126732

KEYWORD

nonn

AUTHOR

njas, Feb 16 2007

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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