A057386 Low-temperature magnetization expansion for hexagonal lattice (Potts model, q=4).

1, 0, 0, 0, 0, 0, -4, 0, 0, 0, -24, -48, 60, 0, -300, -480, 144, 1392, -4392, -7248, 2904, 13280, -27348, -142512, 29948, 241872, -336072, -1711936, -950268, 4759680, -2790212, -25599600, -17648472, 53777216, 24551472, -385317888

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..60 (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: A264769 A169765 A169768 * A099306 A228630 A174647

Adjacent sequences: A057383 A057384 A057385 * A057387 A057388 A057389

Keyword

sign

Author

N. J. A. Sloane, Aug 30 2000

Status

approved