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Search: id:A126730
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A126730 Number of graphs on n nodes with chromatic number 4. +0
1
0, 0, 0, 0, 10, 58, 347, 2130, 14039, 103927 (list; graph; listen)
OFFSET

1,5
LINKS

Keith M. Briggs, Combinatorial Graph Theory

CROSSREFS

A diagonal of triangle in A123962.

Sequence in context: A060157 A055583 A125320 this_sequence A126478 A044148 A044529

Adjacent sequences: A126727 A126728 A126729 this_sequence A126731 A126732 A126733

KEYWORD

nonn

AUTHOR

njas, Feb 16 2007

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

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