A122512 Expansion of 1/(1 - x^2 - 2 x^3 + x^4).

1, 0, 1, 2, 0, 4, 3, 2, 11, 4, 12, 24, 9, 44, 45, 38, 124, 84, 155, 294, 199, 520, 632, 624, 1473, 1368, 2089, 3690, 3352, 6500, 8643, 9514, 18291, 20300, 28676, 47368, 50985, 84420, 117045, 139022, 234900, 288692, 395899, 619470, 738383, 1122576, 1581424

Offset

0,4

Links

Table of n, a(n) for n=0..46.

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

Mathematica

CoefficientList[Series[1/(1-x^2-2 x^3+x^4), {x, 0, 70}], x]  (* Harvey P. Dale, Mar 31 2011 *)

Crossrefs

Sequence in context: A347323 A324471 A346576 * A128263 A241384 A140254

Adjacent sequences: A122509 A122510 A122511 * A122513 A122514 A122515

Keyword

nonn

Author

Roger L. Bagula, Sep 16 2006

Extensions

Edited by N. J. A. Sloane, Sep 17 2006

Values from a(2) onward corrected. - R. J. Mathar, Aug 02 2008

Status

approved