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A289981
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Coefficients in expansion of 236364091*E_24/Delta^2 where Delta is the generating function of Ramanujan's tau function (A000594).
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2
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236364091, 11345607408, 1388559260664, 12394474658060992, 9814693119921673116, 2019857252618388683232, 190025763555531360708608, 10672023198070702208400000, 413360977196056231738283958, 12054048247468605179718429968
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OFFSET
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-2,1
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LINKS
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FORMULA
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G.f.: 236364091*j^2 - 340364160000*j + 30710845440000 where j is the elliptic modular invariant.
G.f.: (236364091 + 131040 * Sum_{n>=1} sigma_23(n)q^n)/(q^2 * Product_{n>=1} (1 - q^n)^48) where sigma_23(n) is A013971.
a(n) ~ 236364091 * exp(4*Pi*sqrt(2*n)) / (2^(1/4) * n^(3/4)). - Vaclav Kotesovec, Apr 09 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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