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A040404 Continued fraction for sqrt(425). 2
20, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1, 1, 1, 1, 1, 40, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..86.

Index entries for continued fractions for constants

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

FORMULA

a(n)=(1/147)*{-773*(n mod 7)+46*[(n+1) mod 7]+46*[(n+2) mod 7]+46*[(n+3) mod 7]+46*[(n+4) mod 7]+46*[(n+5) mod 7]+865*[(n+6) mod 7]}-20*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 30 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(425)), confrac);

CROSSREFS

Sequence in context: A298672 A198800 A060430 * A040405 A040406 A040403

Adjacent sequences:  A040401 A040402 A040403 * A040405 A040406 A040407

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified March 23 12:43 EDT 2019. Contains 321430 sequences. (Running on oeis4.)