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A040651 Continued fraction for sqrt(678). 1
26, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52, 26, 52 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

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).

FORMULA

a(n)=39+13*(-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(678)), confrac);

MATHEMATICA

Block[{$MaxExtraPrecision=1000}, ContinuedFraction[Sqrt[678], 100]] (* or *) PadRight[{26}, 120, {52, 26}] (* Harvey P. Dale, Jul 08 2018 *)

CROSSREFS

Sequence in context: A010865 A214482 A003900 * A022360 A246031 A165847

Adjacent sequences:  A040648 A040649 A040650 * A040652 A040653 A040654

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 23 13:58 EDT 2019. Contains 325254 sequences. (Running on oeis4.)