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A015233 Theta series of lattice Kappa_9. 0
1, 0, 180, 416, 1620, 3024, 6404, 9408, 18876, 20048, 43224, 45408, 70462, 82272, 138408, 121600 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 161.

LINKS

Table of n, a(n) for n=0..15.

EXAMPLE

1+180*q^4+416*q^6+...

CROSSREFS

Sequence in context: A095650 A066164 A008891 * A307112 A211552 A004532

Adjacent sequences:  A015230 A015231 A015232 * A015234 A015235 A015236

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified June 26 00:10 EDT 2019. Contains 324367 sequences. (Running on oeis4.)