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A283271
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Expansion of exp( Sum_{n>=1} -sigma_5(n)*x^n/n ) in powers of x.
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9
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1, -1, -16, -65, -55, 807, 4809, 13135, 550, -169070, -862710, -2281174, -1221309, 20194565, 114391575, 346400092, 486546751, -1239516671, -11089537215, -41702958960, -93143227027, -45337210750, 674845109986, 3682196642725, 11405949184465, 20796945542222
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OFFSET
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0,3
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LINKS
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FORMULA
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G.f.: Product_{n>=1} (1 - x^n)^(n^4).
a(n) = -(1/n)*Sum_{k=1..n} sigma_5(k)*a(n-k).
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CROSSREFS
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Cf. A023873 (exp( Sum_{n>=1} sigma_5(n)*x^n/n )).
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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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