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A084274
Number of labeled connected 4-chromatic (i.e., chromatic number = 4) graphs on n nodes.
2
0, 0, 0, 1, 60, 4652
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OFFSET
1,5
LINKS
Table of n, a(n) for n=1..6.
Eric Weisstein's World of Mathematics,
n-Chromatic Graph
CROSSREFS
Cf.
A001832
,
A084273
.
Sequence in context:
A166772
A293091
A074076
*
A289307
A091032
A328951
Adjacent sequences:
A084271
A084272
A084273
*
A084275
A084276
A084277
KEYWORD
nonn
,
more
AUTHOR
Eric W. Weisstein
, May 24 2003
STATUS
approved
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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)