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A015669
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Expansion of e.g.f. theta_3^(9/2).
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2
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1, 9, 63, 315, 1161, 8505, 112455, 796635, 2843505, 57661065, 1099313775, 9327901275, 92211082425, 1678394943225, 32985192014775, 598006256722875, 4499525524118625, 75554867738975625, 4316991655250649375
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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]^(9/2), {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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nonn
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AUTHOR
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STATUS
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approved
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