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A040652 Continued fraction for sqrt(679). 0
26, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..82.

Index entries for continued fractions for constants

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

FORMULA

a(n)=(1/640)*{-1351*(n mod 16)-551*[(n+1) mod 16]+9*[(n+2) mod 16]+209*[(n+3) mod 16]+169*[(n+4) mod 16]-231*[(n+5) mod 16]+49*[(n+6) mod 16]+1009*[(n+7) mod 16]-911*[(n+8) mod 16]+49*[(n+9) mod 16]+329*[(n+10) mod 16]-71*[(n+11) mod 16]-111*[(n+12) mod 16]+89*[(n+13) mod 16]+649*[(n+14) mod 16]+1449*[(n+15) mod 16]}-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(679)), confrac);

MATHEMATICA

ContinuedFraction[Sqrt[679], 90] (* or *) PadRight[{26}, 90, {52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17}] (* Harvey P. Dale, Jun 04 2017 *)

CROSSREFS

Sequence in context: A064267 A131083 A203597 * A154295 A277685 A072360

Adjacent sequences:  A040649 A040650 A040651 * A040653 A040654 A040655

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 18 01:04 EDT 2019. Contains 326059 sequences. (Running on oeis4.)