A057386 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

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

(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..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