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 A292875 Expansion of the series reversion of Sum_{k>=1} x^k*k*Product_{p|k, p prime} (1 + 1/p). 1
 1, -3, 14, -81, 528, -3708, 27388, -209739, 1650204, -13258230, 108311352, -896946048, 7512187398, -63520243398, 541511083648, -4649182740159, 40163784583752, -348870785898510, 3045109181792304, -26694854975488554, 234936349043049246, -2074958037081265050 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Reversion of g.f. for A001615 (Dedekind psi function). LINKS N. J. A. Sloane, Transforms Eric Weisstein's World of Mathematics, Series Reversion Eric Weisstein's World of Mathematics, Dedekind Function FORMULA G.f. A(x) satisfies: Sum_{k>=1} A(x)^k*k*Product_{p|k, p prime} (1 + 1/p) = x. CROSSREFS Cf. A001615, A050391. Sequence in context: A256336 A256338 A256331 * A077054 A205580 A032332 Adjacent sequences:  A292872 A292873 A292874 * A292876 A292877 A292878 KEYWORD sign AUTHOR Ilya Gutkovskiy, Sep 25 2017 STATUS approved

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Last modified April 25 13:31 EDT 2019. Contains 322461 sequences. (Running on oeis4.)