A083591 Inverse binomial transform of A083589.

1, 3, 9, 27, 82, 242, 736, 2188, 6600, 19736, 59328, 177744, 533728, 1600160, 4802560, 14403520, 43218816, 129640064, 388952832, 1166793216, 3500510464, 10501269248, 31504332544, 94511948032, 283537942272, 850609632512

Offset

0,2

Links

Table of n, a(n) for n=0..25.

Index entries for linear recurrences with constant coefficients, signature (-1,6,14,12).

Formula

O.g.f.: -(1+x)^4/[(2*x+1)(2*x^2+2*x+1)(-1+3*x)]. - R. J. Mathar, Apr 02 2008

Crossrefs

Cf. A033139.

Sequence in context: A273898 A351343 A078226 * A052917 A099786 A237272

Adjacent sequences: A083588 A083589 A083590 * A083592 A083593 A083594

Keyword

nonn,easy

Author

Paul Barry, May 02 2003

Status

approved