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 A260994 #11 Aug 10 2015 03:11:45 %S A260994 22,23,26,28,30,31,33,34,35,37,38,39,40,41,42,43,44,45,46,47,48,50,51, %T A260994 53,54,55,56,59,60,61,62,63,64,65,69,71,72,75,79,81,83,89,92,94,95, %U A260994 101,119,131 %N A260994 Numbers n such that the modular curve X_0(n) has genus >= 2 and contains infinitely many points of degree 2 over some number field L. %H A260994 Francesc Bars, <a href="http://dx.doi.org/10.1006/jnth.1998.2343">Bielliptic Modular Curves</a>, Journal of Number Theory, 76 (1999), 154-165. %Y A260994 Cf. A260990, A260991, A260992, A260993. %K A260994 nonn,fini,full %O A260994 1,1 %A A260994 _N. J. A. Sloane_, Aug 08 2015, following a suggestion from _Roger L. Bagula_, Jul 22 2015