A057382 Low-temperature magnetization expansion for hexagonal lattice (Potts model, q=3).

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

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