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A040406 Continued fraction for sqrt(427). +0
1
20, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1, 40, 1, 1, 1 (list; graph; listen)
OFFSET

0,1

LINKS

Index entries for continued fractions for constants

FORMULA

a(n)=(1/24)*{-191*(n mod 4)+43*[(n+1) mod 4]+43*[(n+2) mod 4]+277*[(n+3) mod 4]}-20*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Apr 30 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(427)), confrac);

CROSSREFS

Sequence in context: A060430 A040404 A040405 this_sequence A040403 A040402 A040401

Adjacent sequences: A040403 A040404 A040405 this_sequence A040407 A040408 A040409

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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