A077897 Expansion of (1-x)^(-1)/(1+x-2*x^2-x^3).

1, 0, 3, -1, 8, -6, 22, -25, 64, -91, 195, -312, 612, -1040, 1953, -3420, 6287, -11173, 20328, -36386, 65870, -118313, 213668, -384423, 693447, -1248624, 2251096, -4054896, 7308465, -13167160, 23729195, -42755049, 77046280, -138827182, 250164694, -450772777, 812274984, -1463655843

Offset

0,3

Links

Table of n, a(n) for n=0..37.

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

Mathematica

CoefficientList[Series[(1-x)^(-1)/(1+x-2x^2-x^3), {x, 0, 40}], x] (* or *) LinearRecurrence[{0, 3, -1, -1}, {1, 0, 3, -1}, 40] (* Harvey P. Dale, Nov 02 2024 *)

Prog

(PARI) Vec((1-x)^(-1)/(1+x-2*x^2-x^3)+O(x^99)) \\ Charles R Greathouse IV, Sep 27 2012

Crossrefs

Sequence in context: A286416 A340672 A005295 * A308737 A257142 A270861

Adjacent sequences: A077894 A077895 A077896 * A077898 A077899 A077900

Keyword

sign,easy

Author

N. J. A. Sloane, Nov 17 2002

Status

approved