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15, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30, 10, 30
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history;
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OFFSET
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0,1
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LINKS
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Table of n, a(n) for n=0..62.
Index entries for continued fractions for constants
Index entries for linear recurrences with constant coefficients, signature (0, 1).
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FORMULA
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a(n)=20+10*(-1)^n-15*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 23 2009]
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MAPLE
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with(numtheory): Digits := 300: convert(evalf(sqrt(228)), confrac);
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MATHEMATICA
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Block[{$MaxExtraPrecision=1000}, ContinuedFraction[Sqrt[228], 100]] (* or *) PadRight[{15}, 100, {30, 10}] (* Harvey P. Dale, Jul 14 2014 *)
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CROSSREFS
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Sequence in context: A166523 A123542 A215236 * A299316 A321419 A013379
Adjacent sequences: A040209 A040210 A040211 * A040213 A040214 A040215
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KEYWORD
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nonn,cofr,easy
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AUTHOR
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N. J. A. Sloane.
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STATUS
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approved
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