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 A025924 Expansion of 1/((1-x^9)*(1-x^10)*(1-x^12)). 0
 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 2, 1, 1, 1, 1, 0, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 3, 2, 2, 2, 2, 1, 3, 2, 2, 3, 3, 2, 4, 2, 2, 3, 3, 2, 4, 3, 3, 4, 4, 2, 5, 3, 3, 4, 4, 3, 5, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,31 LINKS Table of n, a(n) for n=0..79. Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, -1, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 1). FORMULA a(n)= +a(n-9) +a(n-10) +a(n-12) -a(n-19) -a(n-21) -a(n-22) +a(n-31). - R. J. Mathar, Jul 19 2014 MATHEMATICA CoefficientList[Series[1/((1-x^9)(1-x^10)(1-x^12)), {x, 0, 90}], x] (* or *) LinearRecurrence[ {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, -1, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 1}, {1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 2}, 90] (* Harvey P. Dale, Jun 19 2022 *) CROSSREFS Sequence in context: A225192 A262432 A135694 * A025904 A137993 A353329 Adjacent sequences: A025921 A025922 A025923 * A025925 A025926 A025927 KEYWORD nonn,easy AUTHOR N. J. A. Sloane. STATUS approved

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Last modified December 6 22:36 EST 2023. Contains 367616 sequences. (Running on oeis4.)