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A007288 Expansion of layer susceptibility series for square lattice.
(Formerly M2672)
0
1, 3, 7, 19, 49, 127, 321, 813, 2041, 5117, 12763, 31791, 78917, 195677, 484019 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

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

S. G. Whittington, G. M. Torrie and A. J. Guttmann, The Ising model with a free surface: a series analysis study, J. Phys. A 12 (1979), 2449-2455.

LINKS

Table of n, a(n) for n=0..14.

CROSSREFS

Sequence in context: A246493 A293733 A073063 * A191824 A191757 A061646

Adjacent sequences:  A007285 A007286 A007287 * A007289 A007290 A007291

KEYWORD

nonn

AUTHOR

Simon Plouffe

STATUS

approved

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Last modified February 21 04:18 EST 2019. Contains 320371 sequences. (Running on oeis4.)