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A040205 Continued fraction for sqrt(220). 0

%I

%S 14,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,

%T 4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,

%U 28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1,28,1,4,1

%N Continued fraction for sqrt(220).

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

%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 1).

%F a(n)=(1/6)*{-32*(n mod 4)+13*[(n+1) mod 4]+4*[(n+2) mod 4]+49*[(n+3) mod 4]}-14*[C(2*n,n) mod 2], with n>=0 [From _Paolo P. Lava_, Apr 23 2009]

%p with(numtheory): Digits := 300: convert(evalf(sqrt(220)),confrac);

%K nonn,cofr,easy

%O 0,1

%A _N. J. A. Sloane_.

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Last modified March 23 14:17 EDT 2019. Contains 321431 sequences. (Running on oeis4.)