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 A010224 #16 Jul 14 2018 17:26:42 %S A010224 13,2,4,1,8,6,1,1,1,1,2,2,1,1,1,1,6,8,1,4,2,26,2,4,1,8,6,1,1,1,1,2,2, %T A010224 1,1,1,1,6,8,1,4,2,26,2,4,1,8,6,1,1,1,1,2,2,1,1,1,1,6,8,1,4,2,26,2,4, %U A010224 1,8,6,1,1,1,1,2,2,1,1,1,1,6 %N A010224 Continued fraction for sqrt(181). %H A010224 G. Xiao, <a href="http://wims.unice.fr/~wims/en_tool~number~contfrac.en.html">Contfrac</a> %H A010224 <a href="/index/Con#confC">Index entries for continued fractions for constants</a> %H A010224 <a href="/index/Rec#order_21">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1). %t A010224 ContinuedFraction[Sqrt[181],300] (* _Vladimir Joseph Stephan Orlovsky_, Mar 26 2011 *) %K A010224 nonn,cofr %O A010224 0,1 %A A010224 _N. J. A. Sloane_