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A040143 Continued fraction for sqrt(156). 0

%I

%S 12,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,

%T 2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,24,2,

%U 24,2,24,2,24,2,24,2,24,2,24,2

%N Continued fraction for sqrt(156).

%H <a href="/index/Con#confC">Index entries for continued fractions for constants</a>

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0, 1).

%F a(n)=13+11*(-1)^n-12*[C(2*n,n) mod 2], with n>=0 [From _Paolo P. Lava_, Jun 10 2009]

%p Digits := 100: convert(evalf(sqrt(N)),confrac,90,'cvgts'):

%t ContinuedFraction[Sqrt[156],300] (* _Vladimir Joseph Stephan Orlovsky_, Mar 23 2011*)

%t PadRight[{12},120,{24,2}] (* _Harvey P. Dale_, Aug 26 2014 *)

%K nonn,cofr,easy

%O 0,1

%A _N. J. A. Sloane_.

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Last modified August 25 06:07 EDT 2019. Contains 326323 sequences. (Running on oeis4.)