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A173811
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(8*10^n-53)/9 for n>0.
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2
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3, 83, 883, 8883, 88883, 888883, 8888883, 88888883, 888888883, 8888888883, 88888888883, 888888888883, 8888888888883, 88888888888883, 888888888888883, 8888888888888883, 88888888888888883, 888888888888888883
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OFFSET
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1,1
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LINKS
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FORMULA
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a(n) = 10*a(n-1)+53 for n>0, a(0)=-5.
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MATHEMATICA
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CoefficientList[Series[(3+50*x)/((1-x)*(1-10*x)), {x, 0, 30}], x] (* Vincenzo Librandi, Jul 05 2012 *)
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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