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A015691

Expansion of e.g.f. theta_3^(-15/2).

1, -15, 255, -4845, 101385, -2309535, 56759175, -1494125325, 41881856625, -1244022735375, 38993819043375, -1285240980610125, 44407270217165625, -1604088315616161375, 60431927134988784375, -2369411881012489438125

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OFFSET

0,2

REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 102.

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..424

MATHEMATICA

nmax = 25; CoefficientList[Series[EllipticTheta[3, 0, x]^(-15/2), {x, 0, nmax}], x] * Range[0, nmax]! (* Vaclav Kotesovec, Oct 23 2018 *)

CROSSREFS

Sequence in context: A218284 A218634 A218238 * A145562 A027775 A334995

Adjacent sequences: A015688 A015689 A015690 * A015692 A015693 A015694

KEYWORD

sign

AUTHOR

N. J. A. Sloane

STATUS

approved

URL: https://oeis.org/A015691

⇱ A015691 - OEIS