A008994 Denominators of coefficients in expansion of cube root of sin(x).

1, 18, 3240, 1224720, 62985600, 87298041600, 857965152844800, 1575854362368000, 14540529421135872000, 20363866049006577377280000, 5760064968147574743859200000, 2384666896813095943957708800000

Offset

0,2

Links

G. C. Greubel, Table of n, a(n) for n = 0..197

Mathematica

Denominator[CoefficientList[Series[(Sin[x]/x)^(1/3), {x, 0, 50}], x][[1 ;; -1 ;; 2]]] (* G. C. Greubel, Jul 21 2018 *)

Crossrefs

Sequence in context: A318297 A001325 A263589 * A346209 A036214 A188799

Adjacent sequences: A008991 A008992 A008993 * A008995 A008996 A008997

Keyword

nonn

Author

N. J. A. Sloane

Status

approved