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A040383 Continued fraction for sqrt(404). 1

%I

%S 20,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,

%T 10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,

%U 40,10,40,10,40,10,40,10,40,10,40,10,40,10,40,10,40

%N Continued fraction for sqrt(404).

%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)=25+15*(-1)^n-20*[C(2*n,n) mod 2], with n>=0 [From _Paolo P. Lava_, Apr 29 2009]

%p with(numtheory): Digits := 300: convert(evalf(sqrt(404)),confrac);

%K nonn,cofr,easy

%O 0,1

%A _N. J. A. Sloane_.

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Last modified April 18 02:38 EDT 2021. Contains 343072 sequences. (Running on oeis4.)