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A084273
Number of labeled connected 3-chromatic (i.e., chromatic number = 3) graphs on n nodes.
2
0, 0, 1, 18, 472, 18855
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
LINKS
Table of n, a(n) for n=1..6.
Eric Weisstein's World of Mathematics, n-Chromatic Graph
CROSSREFS
Cf. A001832, A084274.
Sequence in context: A086501 A204241 A053115 * A230587 A281161 A027405
Adjacent sequences: A084270 A084271 A084272 * A084274 A084275 A084276
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, May 24 2003
STATUS
approved

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Last modified November 28 14:08 EST 2024. Contains 378204 sequences.
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