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A040652 Continued fraction for sqrt(679). +0
1
26, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2, 1, 5, 8, 1, 1, 25, 1, 1, 8, 5, 1, 2, 17, 52, 17, 2 (list; graph; listen)
OFFSET

0,1

LINKS

Index entries for continued fractions for constants

FORMULA

a(n)=(1/640)*{-1351*(n mod 16)-551*[(n+1) mod 16]+9*[(n+2) mod 16]+209*[(n+3) mod 16]+169*[(n+4) mod 16]-231*[(n+5) mod 16]+49*[(n+6) mod 16]+1009*[(n+7) mod 16]-911*[(n+8) mod 16]+49*[(n+9) mod 16]+329*[(n+10) mod 16]-71*[(n+11) mod 16]-111*[(n+12) mod 16]+89*[(n+13) mod 16]+649*[(n+14) mod 16]+1449*[(n+15) mod 16]}-26*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), May 18 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(679)), confrac);

CROSSREFS

Sequence in context: A005606 A064267 A131083 this_sequence A154295 A072360 A093538

Adjacent sequences: A040649 A040650 A040651 this_sequence A040653 A040654 A040655

KEYWORD

nonn,cofr,easy

AUTHOR

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

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.


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