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 A118751 #4 Mar 30 2012 18:40:37 %S A118751 2,5,7,11,13,17,19,23,29,29,31,37,37,41,43,47,53,53,59,59,61,67,67,71, %T A118751 73,79,79,83,89,89,97,97,97,101,103,107,109,113,127,127,127,127,127, %U A118751 131,137,137,139,149,149,149,151,157,157,163,163,167,173,173,179,179,181 %N A118751 Smallest prime >= 3*n. %Y A118751 Analogous to A060264 = first prime after 2n. %Y A118751 Cf. A060308, A060264, A118750, A118752. %K A118751 easy,nonn %O A118751 0,1 %A A118751 _Jonathan Vos Post_, Apr 29 2006