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Search: id:A126738
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A126738 Number of connected graphs on n nodes with chromatic number 4. +0
1
0, 0, 0, 1, 3, 26, 282, 5009, 149551, 7694428 (list; graph; listen)
OFFSET

1,5
LINKS

Keith M. Briggs, Combinatorial Graph Theory

CROSSREFS

A diagonal of triangle in A126736.

Sequence in context: A062793 A048861 A053972 this_sequence A109074 A119293 A136046

Adjacent sequences: A126735 A126736 A126737 this_sequence A126739 A126740 A126741

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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