A028135 Expansion of 1/((1-4x)(1-6x)(1-8x)(1-9x)).

1, 27, 463, 6447, 79639, 910959, 9884071, 103247199, 1048457047, 10419680271, 101824958599, 981887319231, 9367184200375, 88585292286063, 831747262057447, 7762970817850143, 72093155775104023, 666700494910153935

Offset

0,2

Links

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

Index entries for linear recurrences with constant coefficients, signature (27, -266, 1128, -1728).

Formula

a(n)=(6*9^(n+2)-10*8^(n+2)+5*6^(n+2)-4^(n+2))/10. [Yahia Kahloune, Jun 02 2013]

Crossrefs

Sequence in context: A233022 A289902 A028166 * A028132 A028089 A028121

Adjacent sequences: A028132 A028133 A028134 * A028136 A028137 A028138

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved