A028089 Expansion of 1/((1-3x)(1-7x)(1-8x)(1-9x)).

1, 27, 466, 6558, 82075, 952329, 10485532, 111125916, 1144265749, 11522055831, 113982102598, 1111567913274, 10714164992623, 102277469691333, 968483992074064, 9108558269363832, 85172800746064297

Offset

0,2

Links

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

Index entries for linear recurrences with constant coefficients, signature (27, -263, 1077, -1512).

Formula

a(n)=(10*9^(n+3)-24*8^(n+3)+15*7^(n+3)-3^(n+3))/120. [Yahia Kahloune, May 31 2013]

Crossrefs

Sequence in context: A028166 A028135 A028132 * A028121 A028080 A028118

Adjacent sequences: A028086 A028087 A028088 * A028090 A028091 A028092

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved