A077888 Expansion of (1-x)^(-1)/(1+x^2-x^3).

1, 1, 0, 1, 2, 0, 0, 3, 1, -2, 3, 4, -4, 0, 9, -3, -8, 13, 6, -20, 8, 27, -27, -18, 55, -8, -72, 64, 65, -135, 0, 201, -134, -200, 336, 67, -535, 270, 603, -804, -332, 1408, -471, -1739, 1880, 1269, -3618, 612, 4888, -4229, -4275, 9118, 47, -13392, 9072, 13440, -22463, -4367, 35904, -18095, -40270

Offset

0,5

Links

Table of n, a(n) for n=0..60.

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

Mathematica

CoefficientList[Series[(1-x)^(-1)/(1+x^2-x^3), {x, 0, 60}], x] (* or *) LinearRecurrence[ {1, -1, 2, -1}, {1, 1, 0, 1}, 70] (* Harvey P. Dale, Sep 01 2022 *)

Crossrefs

Sequence in context: A134673 A131636 A188023 * A319668 A167634 A174169

Adjacent sequences: A077885 A077886 A077887 * A077889 A077890 A077891

Keyword

sign,easy

Author

N. J. A. Sloane, Nov 17 2002

Status

approved