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A040660 Continued fraction for sqrt(687). 0
26, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1, 16, 1, 2, 1, 4, 52, 4, 1, 2, 1 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

LINKS

Index entries for continued fractions for constants

FORMULA

a(n)=(1/150)*{-692*(n mod 10)-17*[(n+1) mod 10]+43*[(n+2) mod 10]+13*[(n+3) mod 10]+253*[(n+4) mod 10]-197*[(n+5) mod 10]+43*[(n+6) mod 10]+13*[(n+7) mod 10]+73*[(n+8) mod 10]+748*[(n+9) mod 10]}-26*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), May 18 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(687)), confrac);

CROSSREFS

Sequence in context: A040664 A040665 A040666 * A040661 A140871 A040662

Adjacent sequences:  A040657 A040658 A040659 * A040661 A040662 A040663

KEYWORD

nonn,cofr,easy

AUTHOR

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

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Last modified February 16 15:27 EST 2012. Contains 205930 sequences.