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A028202
Expansion of 1/((1-6x)(1-7x)(1-8x)(1-11x)).
0
1, 32, 647, 10582, 153153, 2049684, 26010139, 317905634, 3781590725, 44096537056, 506668749951, 5757875493006, 64896612687817, 726942456592748, 8105282135259683, 90059836210434298, 998087763949942029
OFFSET
0,2
FORMULA
a(n) = 19*a(n-1) - 88*a(n-2) + 7^(n+1) - 6^(n+1), n >= 2. - Vincenzo Librandi, Mar 13 2011
a(n) = -3*6^(n+2)/5 + 11^(n+3)/60 - 4*8^(n+2)/3 + 7^(n+3)/4. - R. J. Mathar, Mar 18 2011
MATHEMATICA
CoefficientList[Series[1/((1-6x)(1-7x)(1-8x)(1-11x)), {x, 0, 20}], x] (* or *) LinearRecurrence[{32, -377, 1942, -3696}, {1, 32, 647, 10582}, 20] (* Harvey P. Dale, Jul 10 2017 *)
CROSSREFS
Sequence in context: A140802 A028204 A028190 * A028185 A028156 A028177
KEYWORD
nonn
STATUS
approved