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A040442 Continued fraction for sqrt(464). 2
21, 1, 1, 5, 1, 1, 1, 5, 1, 1, 42, 1, 1, 5, 1, 1, 1, 5, 1, 1, 42, 1, 1, 5, 1, 1, 1, 5, 1, 1, 42, 1, 1, 5, 1, 1, 1, 5, 1, 1, 42, 1, 1, 5, 1, 1, 1, 5, 1, 1, 42, 1, 1, 5, 1, 1, 1, 5, 1, 1, 42, 1, 1, 5, 1, 1, 1, 5, 1, 1, 42, 1, 1, 5, 1, 1, 1, 5, 1, 1, 42, 1, 1, 5, 1, 1, 1, 5, 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)=(1/450)*{-1786*(n mod 10)+59*[(n+1) mod 10]+239*[(n+2) mod 10]-121*[(n+3) mod 10]+59*[(n+4) mod 10]+59*[(n+5) mod 10]+239*[(n+6) mod 10]-121*[(n+7) mod 10]+59*[(n+8) mod 10]+1904*[(n+9) mod 10]}-21*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, May 13 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(464)), confrac);

MATHEMATICA

ContinuedFraction[Sqrt[464], 100] (* or *) PadRight[{21}, 100, {42, 1, 1, 5, 1, 1, 1, 5, 1, 1}] (* Harvey P. Dale, Sep 16 2013 *)

CROSSREFS

Sequence in context: A040447 A040444 A040443 * A040441 A190581 A291073

Adjacent sequences:  A040439 A040440 A040441 * A040443 A040444 A040445

KEYWORD

nonn,cofr,easy,less

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified June 20 10:13 EDT 2019. Contains 324234 sequences. (Running on oeis4.)