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A040205 Continued fraction for sqrt(220). 0
14, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1, 28, 1, 4, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..83.

Index entries for continued fractions for constants

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

FORMULA

a(n)=(1/6)*{-32*(n mod 4)+13*[(n+1) mod 4]+4*[(n+2) mod 4]+49*[(n+3) mod 4]}-14*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 23 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(220)), confrac);

CROSSREFS

Sequence in context: A160495 A040204 A040203 * A171693 A235704 A229199

Adjacent sequences:  A040202 A040203 A040204 * A040206 A040207 A040208

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified February 19 12:31 EST 2019. Contains 320310 sequences. (Running on oeis4.)