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 A040109 #22 Jul 08 2025 22:48:05 %S A040109 10,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20, %T A040109 1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1,20,1, %U A040109 20,1,20,1,20,1,20,1,20,1,20,1 %N A040109 Continued fraction for sqrt(120). %H A040109 <a href="/index/Con#confC">Index entries for continued fractions for constants</a>. %H A040109 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0,1). %F A040109 From _Amiram Eldar_, Nov 15 2023: (Start) %F A040109 Multiplicative with a(2^e) = 20, and a(p^e) = 1 for an odd prime p. %F A040109 Dirichlet g.f.: zeta(s) * (1 + 19/2^s). (End) %p A040109 Digits := 100: convert(evalf(sqrt(N)),confrac,90,'cvgts'): %t A040109 ContinuedFraction[Sqrt[120],300] (* _Vladimir Joseph Stephan Orlovsky_, Mar 11 2011*) %Y A040109 Cf. A245294. %K A040109 nonn,cofr,easy,mult %O A040109 0,1 %A A040109 _N. J. A. Sloane_