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A040612 Continued fraction for sqrt(638). 2

%I

%S 25,3,1,6,2,6,1,3,50,3,1,6,2,6,1,3,50,3,1,6,2,6,1,3,50,3,1,6,2,6,1,3,

%T 50,3,1,6,2,6,1,3,50,3,1,6,2,6,1,3,50,3,1,6,2,6,1,3,50,3,1,6,2,6,1,3,

%U 50,3,1,6,2,6,1,3,50,3,1,6,2,6,1,3,50,3,1,6,2,6,1,3

%N Continued fraction for sqrt(638).

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

%H <a href="/index/Rec#order_08">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 1).

%F a(n)=(1/56)*{-311*(n mod 8)+4*[(n+1) mod 8]+53*[(n+2) mod 8]-10*[(n+3) mod 8]+46*[(n+4) mod 8]-17*[(n+5) mod 8]+16*[(n+6) mod 8]+347*[(n+7) mod 8]}-25*[C(2*n,n) mod 2], with n>=0 [From _Paolo P. Lava_, May 15 2009]

%p with(numtheory): Digits := 300: convert(evalf(sqrt(638)),confrac);

%K nonn,cofr,easy

%O 0,1

%A _N. J. A. Sloane_.

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Last modified January 21 17:55 EST 2022. Contains 350479 sequences. (Running on oeis4.)