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A040612 Continued fraction for sqrt(638). 2
25, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3, 50, 3, 1, 6, 2, 6, 1, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..87.

Index entries for continued fractions for constants

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

FORMULA

a(n)=(1/56)*{-311*(n mod 8)+4*[(n+1) mod 8]+53*[(n+2) mod 8]-10*[(n+3) mod 8]+46*[(n+4) mod 8]-17*[(n+5) mod 8]+16*[(n+6) mod 8]+347*[(n+7) mod 8]}-25*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, May 15 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(638)), confrac);

CROSSREFS

Sequence in context: A094582 A040624 A040613 * A040614 A040615 A317325

Adjacent sequences:  A040609 A040610 A040611 * A040613 A040614 A040615

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 30 17:12 EST 2021. Contains 349424 sequences. (Running on oeis4.)