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 A339702 Dirichlet g.f.: Product_{k>=2} (1 - k^(-s))^3. 8
 1, -3, -3, 0, -3, 6, -3, 5, 0, 6, -3, 6, -3, 6, 6, 0, -3, 6, -3, 6, 6, 6, -3, -9, 0, 6, 5, 6, -3, -3, -3, 0, 6, 6, 6, -9, -3, 6, 6, -9, -3, -3, -3, 6, 6, 6, -3, -9, 0, 6, 6, 6, -3, -9, 6, -9, 6, 6, -3, -21, -3, 6, 6, -7, 6, -3, -3, 6, 6, -3, -3, -12, -3, 6, 6, 6, 6, -3, -3, -9 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS FORMULA a(1) = 1; a(n) = -Sum_{d|n, d < n} A339318(n/d) * a(d). a(p^k) = A010816(k) for prime p. CROSSREFS Cf. A010816, A114592, A339318, A339701, A339703, A339704, A339705, A339706, A339707. Sequence in context: A036477 A330013 A128164 * A260636 A245256 A347149 Adjacent sequences: A339699 A339700 A339701 * A339703 A339704 A339705 KEYWORD sign AUTHOR Ilya Gutkovskiy, Dec 13 2020 STATUS approved

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Last modified March 26 17:26 EDT 2023. Contains 361551 sequences. (Running on oeis4.)