A077900 Expansion of (1-x)^(-1)/(1+x-2*x^2+2*x^3).

1, 0, 3, -4, 11, -24, 55, -124, 283, -640, 1455, -3300, 7491, -17000, 38583, -87564, 198731, -451024, 1023615, -2323124, 5272403, -11965880, 27156935, -61633500, 139879131, -317460000, 720485263, -1635163524, 3711054051, -8422351624, 19114786775, -43381598124, 98455874923

Offset: 0

Author

N. J. A. Sloane, Nov 17 2002

Keywords

• sign
• easy

Links

• Index entries for linear recurrences with constant coefficients, signature (0,3,-4,2).

Formula

A077970(n) = a(n)-a(n-1). - R. J. Mathar, Feb 28 2019