A057388 Low-temperature specific heat expansion for hexagonal lattice (Potts model, q=4).

108, 0, 0, 0, 900, 2178, -3672, 0, 14112, 27000, -18432, -114444, 290628, 467856, -354600, -1479114, 1768536, 12073896, -5861808, -29193750, 22900176, 165214728, 64153152, -654007014, 163350540, 2795893038

Offset

0,1

Comments

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

Links

I. Jensen, Table of n, a(n) for n = 0..54 (from link below)

I. Jensen, More terms

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

Index entries for sequences related to specific heat

Crossrefs

Cf. A057374-A057405.

Sequence in context: A158476 A145045 A113471 * A192071 A025601 A109005

Adjacent sequences: A057385 A057386 A057387 * A057389 A057390 A057391

Keyword

sign

Author

N. J. A. Sloane, Aug 30 2000

Status

approved