A078063 Expansion of (1-x)/(1+2*x+x^2-2*x^3).

1, -3, 5, -5, -1, 17, -43, 67, -57, -39, 269, -613, 879, -607, -891, 4147, -8617, 11305, -5699, -17141, 62591, -119439, 142005, -39389, -302105, 927609, -1631891, 1731963, 23183, -5042111, 13524965, -21961453, 20313719, 8383945, -81004515, 194252523, -290732641, 225203729

Offset

0,2

Links

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

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

Mathematica

CoefficientList[Series[(1-x)/(1+2*x+x^2-2*x^3), {x, 0, 40}], x] (* or *) LinearRecurrence[{-2, -1, 2}, {1, -3, 5}, 40] (* Harvey P. Dale, Mar 03 2018 *)

Crossrefs

Sequence in context: A198492 A077860 A261340 * A373304 A019944 A320477

Adjacent sequences: A078060 A078061 A078062 * A078064 A078065 A078066

Keyword

sign,easy

Author

N. J. A. Sloane, Nov 17 2002

Status

approved