A077838 Expansion of (1-x)/(1-3*x-2*x^2-3*x^3).

1, 2, 8, 31, 115, 431, 1616, 6055, 22690, 85028, 318629, 1194013, 4474381, 16767056, 62831969, 235453162, 882324592, 3306376007, 12390136691, 46430135863, 173989808992, 652000108775, 2443270351898, 9155780700220, 34309883130781, 128571021848477

Offset

0,2

Links

Table of n, a(n) for n=0..25.

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

Mathematica

CoefficientList[Series[(1-x)/(1-3x-2x^2-3x^3), {x, 0, 30}], x] (* or *) LinearRecurrence[{3, 2, 3}, {1, 2, 8}, 30] (* Harvey P. Dale, Aug 03 2020 *)

Crossrefs

Sequence in context: A343414 A062456 A289610 * A216318 A018916 A281831

Adjacent sequences: A077835 A077836 A077837 * A077839 A077840 A077841

Keyword

nonn

Author

N. J. A. Sloane, Nov 17 2002

Status

approved