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56, 776, 7976, 79976, 799976, 7999976, 79999976, 799999976, 7999999976, 79999999976, 799999999976, 7999999999976, 79999999999976, 799999999999976, 7999999999999976, 79999999999999976, 799999999999999976
(list;
graph;
refs;
listen;
history;
text;
internal format)
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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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MATHEMATICA
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Table[8 (10^n - 3), {n, 20}] (* or *) CoefficientList[Series[8 (7 + 20 x)/((1 - x) (1 - 10 x)), {x, 0, 20}], x] (* Vincenzo Librandi, Aug 23 2014 *)
LinearRecurrence[{11, -10}, {56, 776}, 20] (* Harvey P. Dale, Sep 26 2018 *)
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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