A066234 Theta series of GH39, an extremal unimodular 39-dimensional lattice.

1, 0, 0, 0, 23790, 1525056, 44420480, 768892800, 9093033300, 80361232640, 564369691392, 3290997166080, 16459430933400, 72362333294400, 285055580709120, 1021529151913088, 3371180795232510, 10348222578720000

Offset

0,5

Links

Table of n, a(n) for n=0..17.

T. Gulliver and M. Harada, An optimal unimodular lattice in dimension 39, J. Combinat. Theory A 88, 158-161 (1999).

Formula

theta_3^39 - 78*theta_3^31*Del8 + 1248*theta_3^23*Del8^2 - 1976*theta_3^15*Del8^3.

Crossrefs

Cf. A000122 (theta_3), A002408 (Del8).

Sequence in context: A031649 A011254 A226002 * A332313 A237691 A185991

Adjacent sequences: A066231 A066232 A066233 * A066235 A066236 A066237

Keyword

nonn

Author

Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Dec 19 2001

Status

approved