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 A321447 Expansion of Product_{0 < i < j < k} (1 - x^(i^2 + j^2 + k^2)). 2
 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, 1, -1, -1, 1, 1, -1, -1, 1, 0, 0, 0, 1, 1, -1, -1, 2, 2, 0, 0, 2, 1, -1, -1, 2, 2, -1, 0, 4, 3, -3, 0, 4, 2, 0, 0, 3, 3, -2, -2, 4, 4, -3, 0, 7 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,56 LINKS Table of n, a(n) for n=0..83. FORMULA G.f.: Product_{k>0} (1 - x^k)^A025442(k). CROSSREFS Cf. A025442, A320332, A321448. Sequence in context: A134015 A113406 A151851 * A341698 A357069 A033461 Adjacent sequences: A321444 A321445 A321446 * A321448 A321449 A321450 KEYWORD sign AUTHOR Seiichi Manyama, Nov 09 2018 STATUS approved

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Last modified February 22 10:17 EST 2024. Contains 370250 sequences. (Running on oeis4.)