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A084272 Number of labeled 4-chromatic (i.e. chromatic number = 4) graphs on n nodes. +0
3
0, 0, 0, 1, 65, 5042 (list; graph; listen)
OFFSET

1,5

LINKS

Eric Weisstein's World of Mathematics, n-Chromatic Graph

CROSSREFS

Cf. A084270, A084271.

Sequence in context: A078988 A027535 A110900 this_sequence A115432 A116104 A116121

Adjacent sequences: A084269 A084270 A084271 this_sequence A084273 A084274 A084275

KEYWORD

nonn,more

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), May 24, 2003

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


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