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Search: id:A010140
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| A010140 |
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Continued fraction for sqrt(54). |
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+0
2
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| 7, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1, 6, 1, 2, 14, 2, 1
(list; graph; listen)
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OFFSET
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0,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=0,...,20000
G. Xiao, Contfrac
Index entries for continued fractions for constants
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FORMULA
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a(n)=(1/90)*{-124*(n mod 6)-19*[(n+1) mod 6]+41*[(n+2) mod 6]+11*[(n+3) mod 6]+71*[(n+4) mod 6]+176*[(n+5) mod 6]}-7*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Jul 23 2009]
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EXAMPLE
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7.348469228349534294591852224... = 7 + 1/(2 + 1/(1 + 1/(6 + 1/(1 + ...)))) [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 06 2009]
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PROGRAM
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(PARI) { allocatemem(932245000); default(realprecision, 21000); x=contfrac(sqrt(54)); for (n=0, 20000, write("b010140.txt", n, " ", x[n+1])); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 06 2009]
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CROSSREFS
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Cf. A010507 Decimal expansion. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 06 2009]
Sequence in context: A089129 A100957 A133362 this_sequence A154020 A060991 A120455
Adjacent sequences: A010137 A010138 A010139 this_sequence A010141 A010142 A010143
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KEYWORD
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nonn,cofr
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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