A083708 G.f.: (x+4*x^3+x^5)/((1-x)^2*(1-x^2)^2*(1-x^3)^2).

0, 1, 2, 9, 18, 39, 72, 126, 204, 324, 484, 710, 1008, 1401, 1902, 2547, 3342, 4335, 5544, 7012, 8768, 10872, 13344, 16260, 19656, 23601, 28146, 33381, 39346, 46151, 53856, 62562, 72348, 83340, 95604, 109290, 124488, 141337, 159950, 180495, 203070, 227871

Offset

0,3

Links

Harvey P. Dale, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (2, 1, -2, -3, 0, 6, 0, -3, -2, 1, 2, -1).

Mathematica

CoefficientList[Series[(x+4x^3+x^5)/((1-x)^2(1-x^2)^2(1-x^3)^2), {x, 0, 60}], x] (* or *) LinearRecurrence[{2, 1, -2, -3, 0, 6, 0, -3, -2, 1, 2, -1}, {0, 1, 2, 9, 18, 39, 72, 126, 204, 324, 484, 710}, 60] (* Harvey P. Dale, Dec 30 2021 *)

Crossrefs

Cf. A083707.

Sequence in context: A295956 A296843 A200085 * A280588 A191520 A037421

Adjacent sequences: A083705 A083706 A083707 * A083709 A083710 A083711

Keyword

nonn

Author

N. J. A. Sloane, Jun 15 2003

Status

approved