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A136283 Number of graphs on n labeled nodes with degree at most 4. 2
1, 2, 8, 64, 1024, 27449, 1052793, 53470067, 3451287371, 275322712826, 26566919914276, 3047264283807562 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

D. E. Knuth, The Art of Computer Programming, Vol. 4A, Section 7.1.4.

CROSSREFS

Cf. A000085 (degree at most 1), A136281-A136286.

Sequence in context: A178169 A191572 A191573 * A139680 A153544 A153572

Adjacent sequences:  A136280 A136281 A136282 * A136284 A136285 A136286

KEYWORD

nonn,more

AUTHOR

D. E. Knuth, Mar 31 2008

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Last modified February 17 06:27 EST 2012. Contains 205998 sequences.