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A023912 Theta series of A_21 lattice. 0
1, 462, 43890, 1501500, 23437722, 198944592, 1114627514, 4828206900, 17160463320, 52574485502, 143000133276, 353652649308, 808266398940, 1728870130680, 3496186881264, 6732994928660, 12429951473478 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

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

CROSSREFS

Sequence in context: A027816 A027823 A194718 * A027565 A035847 A140905

Adjacent sequences:  A023909 A023910 A023911 * A023913 A023914 A023915

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

More terms from Robert.Harley(AT)inria.fr, see A023902.

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Last modified February 15 13:31 EST 2012. Contains 205802 sequences.