cp's OEIS Frontend

A040461 Continued fraction for sqrt(483).

%I A040461 #22 Dec 26 2023 06:39:32
%S A040461 21,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,
%T A040461 1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,
%U A040461 42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42,1,42
%N A040461 Continued fraction for sqrt(483).
%H A040461 <a href="/index/Con#confC">Index entries for continued fractions for constants</a>.
%H A040461 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0,1).
%F A040461 a(n) = a(n-2) for n >= 3. - _Wesley Ivan Hurt_, Sep 03 2022
%F A040461 From _Amiram Eldar_, Dec 26 2023: (Start)
%F A040461 Multiplicative with a(2^e) = 42, and a(p^e) = 1 for an odd prime p.
%F A040461 Dirichlet g.f.: zeta(s) * (1 + 41/2^s). (End)
%p A040461 with(numtheory): Digits := 300: convert(evalf(sqrt(483)),confrac);
%t A040461 ContinuedFraction[Sqrt[483],90] (* _Harvey P. Dale_, Oct 22 2011 *)
%K A040461 nonn,cofr,easy,less,mult
%O A040461 0,1
%A A040461 _N. J. A. Sloane_