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A028021 Expansion of 1/((1-2x)(1-9x)(1-10x)(1-11x)). 0
1, 32, 665, 11380, 174261, 2483592, 33669985, 440024060, 5592152621, 69530670352, 849490297305, 10231269580740, 121775852180581, 1435121355116312, 16771617736444625, 194605340572369420 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n)=(28*11^(n+3)-63*10^(n+3)+36*9^(n+3)-2^(n+3))/504. [Yahia Kahloune, May 30 2013]
MATHEMATICA
CoefficientList[Series[1/((1-2x)(1-9x)(1-10x)(1-11x)), {x, 0, 30}], x] (* or *) LinearRecurrence[{32, -359, 1588, -1980}, {1, 32, 665, 11380}, 30] (* Harvey P. Dale, May 04 2018 *)
CROSSREFS
Sequence in context: A028143 A028101 A028097 * A028129 A028088 A028019
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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Last modified May 21 15:14 EDT 2024. Contains 372738 sequences. (Running on oeis4.)