A016226 Expansion of 1/((1-x)(1-4x)(1-11x)).

1, 16, 197, 2252, 25113, 277608, 3059149, 33672484, 370484705, 4075681280, 44833892181, 493178406396, 5424984839977, 59674922718232, 656424507814493, 7220671017615188, 79427386920390129, 873701279030783664

Offset

0,2

Links

Table of n, a(n) for n=0..17.

Index entries for linear recurrences with constant coefficients, signature (16, -59, 44).

Formula

a(n) = (1/30) - (16/21)*4^(n-1) + (121/70)*11^(n-1). - Antonio Alberto Olivares, Feb 07 2010

a(0)=1, a(1)=16, a(n) = 15*a(n-1) - 44*a(n-2) + 1. - Vincenzo Librandi, Feb 10 2011

Crossrefs

Sequence in context: A144844 A093060 A153885 * A332854 A154240 A081679

Adjacent sequences: A016223 A016224 A016225 * A016227 A016228 A016229

Keyword

nonn

Author

N. J. A. Sloane

Status

approved