A025956 Expansion of 1/((1-2x)(1-3x)(1-10x)(1-12x)).

1, 27, 493, 7671, 109813, 1496031, 19737181, 254700567, 3234969925, 40605328335, 505121007469, 6240023291463, 76665993102037, 937849058035839, 11432760118860157, 138978835693603959, 1685603171125077349

Offset

0,2

Links

Table of n, a(n) for n=0..16.

Index entries for linear recurrences with constant coefficients, signature (27, -236, 732, -720).

Formula

a(n) = -2^n/10 +3*3^n/7 -125*10^n/14 +48*12^n/5. - R. J. Mathar, Jun 20 2013

Crossrefs

Sequence in context: A023772 A020726 A020969 * A020724 A021994 A020568

Adjacent sequences: A025953 A025954 A025955 * A025957 A025958 A025959

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved