A077933 - OEIS

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A077933

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

1, -1, 1, 2, -6, 10, -5, -15, 51, -76, 36, 132, -411, 595, -235, -1130, 3326, -4626, 1471, 9637, -26841, 35880, -8440, -81720, 216201, -277401, 40681, 689642, -1738046, 2137490, -109245, -5794535, 13945051, -16410276, -864084, 48493772, -111669651, 125487675, 20857725, -404360450

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OFFSET

0,4

LINKS

Table of n, a(n) for n=0..39.

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

CROSSREFS

Sequence in context: A086553 A342068 A004055 * A144762 A141572 A141257

Adjacent sequences: A077930 A077931 A077932 * A077934 A077935 A077936

KEYWORD

sign,easy

AUTHOR

N. J. A. Sloane, Nov 17 2002

STATUS

approved