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 A319244 Expansion of Product_{k>0} (1 - x^(k^3))/(1 + x^(k^3)). 1
 1, -2, 2, -2, 2, -2, 2, -2, 0, 2, -2, 2, -2, 2, -2, 2, 0, -2, 2, -2, 2, -2, 2, -2, 0, 2, -2, 0, 2, -2, 2, -2, 4, -6, 6, -2, -2, 2, -2, 2, -4, 6, -6, 2, 2, -2, 2, -2, 4, -6, 6, -2, -2, 2, 0, -2, 0, 2, -2, -2, 6, -6, 2, 2, -2, 2, -2, 6, -10, 10, -6, 2, 0, -2, 2, -6, 10 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Table of n, a(n) for n=0..76. FORMULA Convolution inverse of A280263. CROSSREFS Product_{k>0} (1 - x^(k^m))/(1 + x^(k^m)): A002448 (m=1), A319243 (m=2), this sequence (m=3). Cf. A280263. Sequence in context: A230410 A044925 A323356 * A309286 A102671 A292519 Adjacent sequences: A319241 A319242 A319243 * A319245 A319246 A319247 KEYWORD sign AUTHOR Seiichi Manyama, Sep 15 2018 STATUS approved

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Last modified September 16 04:06 EDT 2024. Contains 375959 sequences. (Running on oeis4.)