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A005333 Number of 2-colored graphs.
(Formerly M4030)
8
1, 5, 205, 36317, 23679901, 56294206205, 502757743028605, 17309316971673776957, 2333508400614646874734621, 1243000239291173897659593056765 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

F. Harary and R. W. Robinson, Labeled bipartite blocks, Canad. J. Math., 31 (1979), 60-68.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

CROSSREFS

Sequence in context: A186722 A060486 A002438 * A162087 A068531 A144139

Adjacent sequences:  A005330 A005331 A005332 * A005334 A005335 A005336

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 13 20:26 EST 2012. Contains 205553 sequences.