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A015683 Expansion of e.g.f. theta_3^(-5/2). 1
1, -5, 35, -315, 3345, -40845, 562275, -8575875, 143273025, -2598830325, 50790003075, -1062924352875, 23699584148625, -560468936152125, 14004884930911875, -368541883096261875, 10183347536828090625 (list; graph; refs; listen; history; text; internal format)
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..434

MATHEMATICA

nmax = 25; CoefficientList[Series[EllipticTheta[3, 0, x]^(-5/2), {x, 0, nmax}], x] * Range[0, nmax]! (* Vaclav Kotesovec, Oct 23 2018 *)

CROSSREFS

Sequence in context: A052797 A225177 A151344 * A000357 A102147 A051577

Adjacent sequences:  A015680 A015681 A015682 * A015684 A015685 A015686

KEYWORD

sign

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified May 14 14:36 EDT 2021. Contains 343884 sequences. (Running on oeis4.)