A077842 Expansion of (1-x)/(1-2*x-2*x^2-3*x^3).

1, 1, 4, 13, 37, 112, 337, 1009, 3028, 9085, 27253, 81760, 245281, 735841, 2207524, 6622573, 19867717, 59603152, 178809457, 536428369, 1609285108, 4827855325, 14483565973, 43450697920, 130352093761, 391056281281, 1173168843844, 3519506531533, 10558519594597

Offset

0,3

Links

Table of n, a(n) for n=0..28.

Index entries for linear recurrences with constant coefficients, signature (2,2,3).

Mathematica

CoefficientList[Series[(1-x)/(1-2x-2x^2-3x^3), {x, 0, 30}], x] (* or *) LinearRecurrence[{2, 2, 3}, {1, 1, 4}, 30] (* Harvey P. Dale, Sep 21 2016 *)

Crossrefs

Sequence in context: A097551 A224033 A095126 * A091874 A067633 A297391

Adjacent sequences: A077839 A077840 A077841 * A077843 A077844 A077845

Keyword

nonn

Author

N. J. A. Sloane, Nov 17 2002

Status

approved