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A076316
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Number of 4-colorable (i.e. chromatic number <= 4) simple graphs on n nodes.
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6
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OFFSET
| 1,2
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LINKS
| Eric Weisstein's World of Mathematics, n-Colorable Graph
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CROSSREFS
| Cf. A033995, A076315, A076317, A076318, A076319, A076320, A076321.
Sequence in context: A123470 A123450 A052431 * A082104 A099215 A089407
Adjacent sequences: A076313 A076314 A076315 * A076317 A076318 A076319
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KEYWORD
| nonn,more
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com), Oct 06, 2002
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