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A015682
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Expansion of e.g.f. theta_3^(-3/2).
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3
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1, -3, 15, -105, 873, -8595, 97335, -1233225, 17298225, -266220675, 4444840575, -79989057225, 1543271585625, -31735822993875, 692766164665575, -15995714865755625, 389241925213766625, -9954282875453791875
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OFFSET
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0,2
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REFERENCES
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J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 102.
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LINKS
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MATHEMATICA
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nmax = 25; CoefficientList[Series[EllipticTheta[3, 0, x]^(-3/2), {x, 0, nmax}], x] * Range[0, nmax]! (* Vaclav Kotesovec, Oct 23 2018 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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