Search: a021043 -id:a021043
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A021160
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Decimal expansion of 1/156.
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+10
2
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0, 0, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6, 4, 1, 0, 2, 5, 6
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OFFSET
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0,3
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LINKS
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FORMULA
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The period is just 6: after 0.00, 641025 repeated endlessly. - Alonso del Arte, Apr 18 2018
G.f.: x^2*(6 - 8*x + 5*x^2) / ((1 - x)*(1 - x + x^2)).
a(n) = 2*a(n-1) - 2*a(n-2) + a(n-3) for n>4. (End)
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EXAMPLE
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0.00641025641025641025641025641...
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MATHEMATICA
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PadRight[{0, 0}, 100, {2, 5, 6, 4, 1, 0}] (* or *) Join[{0, 0}, RealDigits[1/156, 10, 100][[1]]] (* Harvey P. Dale, May 13 2012 *)
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PROG
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(PARI) concat(vector(2), Vec(x^2*(6 - 8*x + 5*x^2) / ((1 - x)*(1 - x + x^2)) + O(x^60))) \\ Colin Barker, Apr 19 2018
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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