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%I #18 Jan 10 2024 00:29:00
%S 28,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,
%T 1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,
%U 56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56,1,56
%N Continued fraction for sqrt(840).
%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 From _Amiram Eldar_, Jan 10 2024: (Start)
%F Multiplicative with a(2^e) = 56, and a(p^e) = 1 for an odd prime p.
%F Dirichlet g.f.: zeta(s) * (1 + 55/2^s). (End)
%p with(numtheory): Digits := 300: convert(evalf(sqrt(840)),confrac);
%t ContinuedFraction[Sqrt[840], 100] (* _Amiram Eldar_, Jan 10 2024 *)
%K nonn,cofr,easy,mult
%O 0,1
%A _N. J. A. Sloane_
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