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A025983
Expansion of 1/((1-2x)(1-4x)(1-10x)(1-11x)).
0
1, 27, 485, 7335, 101181, 1319967, 16597525, 203384295, 2445473261, 28983189807, 339647023365, 3944444998455, 45472205947741, 521027509282047, 5939635577526005, 67419323254471815, 762445883405916621
OFFSET
0,2
FORMULA
a(n) = -2^n/18 +16*4^n/21 -125*10^n/6 +1331*11^n/63. - R. J. Mathar, Jun 20 2013
MATHEMATICA
CoefficientList[Series[1/((1-2x)(1-4x)(1-10x)(1-11x)), {x, 0, 20}], x] (* Harvey P. Dale, Aug 11 2019 *)
CROSSREFS
Sequence in context: A024439 A026006 A024346 * A081139 A020976 A024114
KEYWORD
nonn
AUTHOR
STATUS
approved