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A125564 Theta series of 5-dimensional lattice A_5^{+2}. 1
1, 0, 30, 30, 0, 132, 90, 0, 270, 140, 0, 420, 270, 0, 600, 360, 0, 840, 330, 0, 1092, 660, 0, 1200, 810, 0, 1500, 570, 0, 1980, 1020, 0, 2190, 1260, 0, 2280, 1100, 0, 2460, 1560, 0, 3360, 1620, 0, 3780, 1452, 0, 3360, 2190, 0, 3930, 2340, 0, 4620, 1710, 0, 5400, 2940 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices I: Quadratic Forms of Small Determinant, Proc. Royal Soc. London, Series A, 418 (1988), 17-41.

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 110.

LINKS

John Cannon, Table of n, a(n) for n = 0..5000

EXAMPLE

1 + 30*q^4 + 30*q^6 + 132*q^10 + 90*q^12 + 270*q^16 + 140*q^18 + 420*q^22 + ...

CROSSREFS

Sequence in context: A057350 A244948 A282130 * A056997 A056958 A010869

Adjacent sequences:  A125561 A125562 A125563 * A125565 A125566 A125567

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 31 2007

STATUS

approved

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Last modified November 21 01:33 EST 2019. Contains 329349 sequences. (Running on oeis4.)