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 A040662 Continued fraction for sqrt(689). 1
 26, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52, 4, 52 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Index entries for linear recurrences with constant coefficients, signature (0, 1). FORMULA a(n)=28+24*(-1)^n-26*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, May 18 2009] MAPLE with(numtheory): Digits := 300: convert(evalf(sqrt(689)), confrac); MATHEMATICA ContinuedFraction[Sqrt[689], 60] (* or *) PadRight[{26, 4}, 80, {52, 4}] (* Harvey P. Dale, Dec 03 2011 *) CROSSREFS Sequence in context: A040660 A040661 A140871 * A082058 A040658 A217974 Adjacent sequences:  A040659 A040660 A040661 * A040663 A040664 A040665 KEYWORD nonn,cofr,easy AUTHOR STATUS approved

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Last modified July 22 07:23 EDT 2019. Contains 325216 sequences. (Running on oeis4.)