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 A321555 a(n) = Sum_{d|n} (-1)^(n/d+1)*d^10. 4
 1, 1023, 59050, 1047551, 9765626, 60408150, 282475250, 1072692223, 3486843451, 9990235398, 25937424602, 61857886550, 137858491850, 288972180750, 576660215300, 1098436836351, 2015993900450, 3567040850373, 6131066257802, 10229991281926, 16680163512500, 26533985367846, 41426511213650, 63342475768150 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Seiichi Manyama, Table of n, a(n) for n = 1..10000 J. W. L. Glaisher, On the representations of a number as the sum of two, four, six, eight, ten, and twelve squares, Quart. J. Math. 38 (1907), 1-62 (see p. 4 and p. 8). FORMULA G.f.: Sum_{k>=1} k^10*x^k/(1 + x^k). - Seiichi Manyama, Nov 25 2018 PROG (PARI) apply( A321555(n)=sumdiv(n, d, (-1)^(n\d-1)*d^10), [1..30]) \\ M. F. Hasler, Nov 26 2018 CROSSREFS Cf. A321543 - A321565, A321807 - A321836 for similar sequences. Sequence in context: A069095 A024008 A123867 * A321549 A160959 A022192 Adjacent sequences:  A321552 A321553 A321554 * A321556 A321557 A321558 KEYWORD nonn,mult AUTHOR N. J. A. Sloane, Nov 23 2018 STATUS approved

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Last modified February 28 06:55 EST 2020. Contains 332321 sequences. (Running on oeis4.)