A089135 a(n) = -a(n-2) + 2*a(n-4) - a(n-10).

1, 0, 0, 2, 3, -2, -3, 6, 9, -11, -16, 23, 34, -47, -69, 95, 140, -195, -287, 396, 583, -809, -1191, 1648, 2426, -3361, -4948, 6852, 10087, -13970, -20566, 28483, 41931, -58071, -85489, 118398, 174299, -241392, -355364, 492158, 724528, -1003425, -1477187

Offset

1,4

Links

Table of n, a(n) for n=1..43.

Formula

G.f.: x*(1+2*x^3+x^4-x^9+x^2)/(1+x^2-2*x^4+x^10). - R. J. Mathar, Oct 24 2008

Crossrefs

Sequence in context: A331171 A336953 A193917 * A215412 A227585 A038063

Adjacent sequences: A089132 A089133 A089134 * A089136 A089137 A089138

Keyword

sign,easy,less

Author

Roger L. Bagula, Dec 05 2003

Status

approved