

A008432


Theta series of D_10 lattice.


3



1, 180, 3380, 16320, 52020, 129064, 262080, 489600, 840500, 1330420, 2050344, 2986560, 4194240, 5878440, 7862400, 10216320, 13415220, 17163880, 21250420, 26585280, 32826664, 39475200, 47960640, 57087360, 67108800, 80452188, 93590440, 107091840, 125827200, 145415080
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OFFSET

0,2


REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", SpringerVerlag, p. 118.


LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..10000


MATHEMATICA

terms = 23; s = 1/2 (EllipticTheta[3, 0, q]^10 + EllipticTheta[4, 0, q]^10) + O[q]^(2 terms); CoefficientList[s, q^2] (* JeanFrançois Alcover, Jul 07 2017 *)


CROSSREFS

Sequence in context: A179721 A112068 A058835 * A289318 A250146 A243465
Adjacent sequences: A008429 A008430 A008431 * A008433 A008434 A008435


KEYWORD

nonn,easy


AUTHOR

N. J. A. Sloane


EXTENSIONS

More terms from Seiichi Manyama, Oct 16 2018


STATUS

approved



