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A003204 Cluster series for honeycomb.
(Formerly M2557)
0
1, 3, 6, 12, 24, 33, 60, 99, 156, 276, 438, 597 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

J. W. Essam, Percolation and cluster size, in C. Domb and M. S. Green, Phase Transitions and Critical Phenomena, Ac. Press 1972, Vol. 2; see especially pp. 225-226.

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

M. F. Sykes and J. W. Essam, Critical percolation probabilities by series methods, Phys. Rev., 133 (1964), A310-A315.

CROSSREFS

Sequence in context: A005256 A097979 A173216 * A038620 A039695 A079079

Adjacent sequences:  A003201 A003202 A003203 * A003205 A003206 A003207

KEYWORD

nonn

AUTHOR

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

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Last modified February 15 23:34 EST 2012. Contains 205860 sequences.