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A040630 Continued fraction for sqrt(656). 2
25, 1, 1, 1, 1, 2, 1, 1, 1, 1, 50, 1, 1, 1, 1, 2, 1, 1, 1, 1, 50, 1, 1, 1, 1, 2, 1, 1, 1, 1, 50, 1, 1, 1, 1, 2, 1, 1, 1, 1, 50, 1, 1, 1, 1, 2, 1, 1, 1, 1, 50, 1, 1, 1, 1, 2, 1, 1, 1, 1, 50, 1, 1, 1, 1, 2, 1, 1, 1, 1, 50, 1, 1, 1, 1, 2, 1, 1, 1, 1, 50, 1, 1, 1, 1, 2, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..89.

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, 1).

FORMULA

a(n)=(1/30)*{-143*(n mod 10)+4*[(n+1) mod 10]+4*[(n+2) mod 10]+4*[(n+3) mod 10]+7*[(n+4) mod 10]+[(n+5) mod 10]+4*[(n+6) mod 10]+4*[(n+7) mod 10]+4*[(n+8) mod 10]+151*[(n+9) mod 10]}-25*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, May 18 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(656)), confrac);

MATHEMATICA

ContinuedFraction[Sqrt[656], 150]  (* Harvey P. Dale, Mar 14 2011 *)

CROSSREFS

Sequence in context: A110416 A028848 A172298 * A040631 A040632 A040628

Adjacent sequences:  A040627 A040628 A040629 * A040631 A040632 A040633

KEYWORD

nonn,cofr,easy,less

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 7 19:19 EDT 2020. Contains 336278 sequences. (Running on oeis4.)