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A010159 Continued fraction for sqrt(86). +0
2
9, 3, 1, 1, 1, 8, 1, 1, 1, 3, 18, 3, 1, 1, 1, 8, 1, 1, 1, 3, 18, 3, 1, 1, 1, 8, 1, 1, 1, 3, 18, 3, 1, 1, 1, 8, 1, 1, 1, 3, 18, 3, 1, 1, 1, 8, 1, 1, 1, 3, 18, 3, 1, 1, 1, 8, 1, 1, 1, 3, 18, 3, 1, 1, 1, 8, 1, 1, 1, 3, 18, 3, 1, 1, 1, 8, 1, 1 (list; graph; listen)
OFFSET

0,1

LINKS

Harry J. Smith, Table of n, a(n) for n=0,...,20000

G. Xiao, Contfrac

Index entries for continued fractions for constants

FORMULA

a(n)=(1/450)*{-637*(n mod 10)-52*[(n+1) mod 10]+38*[(n+2) mod 10]+38*[(n+3) mod 10]+353*[(n+4) mod 10]-277*[(n+5) mod 10]+38*[(n+6) mod 10]+38*[(n+7) mod 10]+128*[(n+8) mod 10]+713*[(n+9) mod 10]}-9*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Jul 24 2009]

EXAMPLE

9.273618495495703752516416073... = 9 + 1/(3 + 1/(1 + 1/(1 + 1/(1 + ...)))) [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 10 2009]

PROGRAM

(PARI) { allocatemem(932245000); default(realprecision, 18000); x=contfrac(sqrt(86)); for (n=0, 20000, write("b010159.txt", n, " ", x[n+1])); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 10 2009]

CROSSREFS

Cf. A010537 Decimal expansion. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 10 2009]

Sequence in context: A011461 A160579 A134897 this_sequence A097528 A065416 A093312

Adjacent sequences: A010156 A010157 A010158 this_sequence A010160 A010161 A010162

KEYWORD

nonn,cofr

AUTHOR

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

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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