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A109696
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Decimal expansion of root of 1 - Sum_{n>=0} 1/x^(2^n).
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1
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1, 7, 6, 6, 3, 9, 8, 1, 1, 4, 5, 5, 0, 1, 7, 3, 5, 9, 7, 2, 2, 8, 4, 8, 8, 3, 9, 2, 4, 4, 0, 0, 9, 9, 7, 3, 0, 2, 3, 2, 0, 6, 9, 2, 8, 7, 9, 5, 7, 0, 7, 2, 7, 7, 5, 2, 7, 8, 2, 8, 5, 0, 7, 4, 4, 0, 8, 3, 8, 4, 3, 4, 0, 5, 2, 4, 9, 8, 8, 3, 1, 1, 7, 9, 0, 4, 0, 6, 9, 7, 2, 7, 2, 0, 4, 5, 7, 9, 5, 8, 2, 4, 7, 9, 9
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OFFSET
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1,2
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LINKS
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EXAMPLE
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1.766398114550173597228488392440099730232069287957072775...
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MATHEMATICA
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RealDigits[ FindRoot[1 - Sum[1/(x^(2^n)), {n, 0, 8}] == 0, {x, 1.7}, WorkingPrecision -> 128][[1, 2]], 10, 128][[1]] (* Robert G. Wilson v, Aug 08 2005 *)
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PROG
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(PARI) solve(x=1, 2, 1-sum(k=0, 8, 1./x^(2^k)))
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CROSSREFS
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This is the limit ratio between consecutive terms of A023359.
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KEYWORD
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AUTHOR
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STATUS
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approved
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