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A057382 Low-temperature magnetization expansion for hexagonal lattice (Potts model, q=3). 1
1, 0, 0, 0, 0, 0, -3, 0, 0, 0, -18, -18, 24, 0, -171, -162, 153, 252, -1704, -2106, 1998, 2586, -14364, -28098, 19008, 43020, -147024, -317304, 125775, 612954, -1370868, -3909528, 907209, 7487136, -11849868, -46762686, 252159 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,7

COMMENTS

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

LINKS

I. Jensen, Table of n, a(n) for n = 0..69 (from link below)

I. Jensen, More terms

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

CROSSREFS

Cf. A057374-A057405.

Sequence in context: A057389 A241668 A228861 * A007270 A222896 A057387

Adjacent sequences:  A057379 A057380 A057381 * A057383 A057384 A057385

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Aug 30 2000

STATUS

approved

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Last modified January 15 20:47 EST 2019. Contains 319184 sequences. (Running on oeis4.)