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A003488 High temperature series for spin-1/2 Ising surface susceptibility on planar hexagonal lattice.
(Formerly M3662)
0
4, 36, 232, 1308, 6808, 33560, 159108 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The hexagonal lattice is the familiar 2-dimensional lattice in which each point has 6 neighbors. This is sometimes called the triangular lattice.

REFERENCES

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

P. G. Watson, in C. Domb and M. S. Green, Phase Transitions and Critical Phenomena, Ac. Press 1972, Vol. 2, p. 136.

LINKS

Table of n, a(n) for n=1..7.

G. Nebe and N. J. A. Sloane, Home page for hexagonal (or triangular) lattice A2

CROSSREFS

Sequence in context: A197424 A306094 A018217 * A295411 A218516 A119579

Adjacent sequences:  A003485 A003486 A003487 * A003489 A003490 A003491

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified February 23 05:58 EST 2019. Contains 320411 sequences. (Running on oeis4.)