A028193 Expansion of 1/((1-5x)(1-8x)(1-10x)(1-11x)).

1, 34, 733, 12810, 198261, 2836554, 38431933, 500511850, 6327324421, 78172168074, 948456878733, 11341481077290, 134023690999381, 1568398573483594, 18205481984727133, 209885052725681130

Offset

0,2

Links

Table of n, a(n) for n=0..15.

Index entries for linear recurrences with constant coefficients, signature (34,-423,2270,-4400).

Formula

a(n) = 21*a(n-1) - 110*a(n-2) + (8^(n+1) - 5^(n+1))/3, n >= 2. - Vincenzo Librandi, Mar 12 2011

a(n) = (8^(n+3) + 11^(n+3) - 18*10^(n+2) - 5^(n+2))/18. - Bruno Berselli, Mar 12 2011

Crossrefs

Sequence in context: A016109 A028211 A028207 * A028206 A028192 A028161

Adjacent sequences: A028190 A028191 A028192 * A028194 A028195 A028196

Keyword

nonn

Author

N. J. A. Sloane

Status

approved