This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A040379 #16 Dec 20 2023 08:05:46 %S A040379 19,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38, %T A040379 1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1, %U A040379 38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38,1,38 %N A040379 Continued fraction for sqrt(399). %H A040379 <a href="/index/Con#confC">Index entries for continued fractions for constants</a>. %H A040379 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0,1). %F A040379 From _Amiram Eldar_, Dec 20 2023: (Start) %F A040379 Multiplicative with a(2^e) = 38, and a(p^e) = 1 for an odd prime p. %F A040379 Dirichlet g.f.: zeta(s) * (1 + 37/2^s). (End) %p A040379 with(numtheory): Digits := 300: convert(evalf(sqrt(399)),confrac); %t A040379 ContinuedFraction[Sqrt[399], 100] (* _Amiram Eldar_, Dec 20 2023 *) %K A040379 nonn,cofr,easy,mult %O A040379 0,1 %A A040379 _N. J. A. Sloane_