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 A133428 #8 Apr 07 2015 11:04:47 %S A133428 1,2,3,4,5,7,12,16,17,20,23,24,26,32,35,39,41,43,45,48,55,56,60,66,69, %T A133428 75,79,81,90,93,97,98,104,108,120,131,132,135,137,146,147,156,160,165, %U A133428 173,176,178,182,184,208,212,217,226,228,230,238,246,248,277,280,285,287,290 %N A133428 Where records occur in A025017. %H A133428 Tomás Oliveira e Silva, <a href="http://sweet.ua.pt/tos/goldbach.html">Goldbach conjecture verification</a> %H A133428 <a href="/index/Go#Goldbach">Index entries for sequences related to Goldbach conjecture</a> %K A133428 nonn %O A133428 1,2 %A A133428 _N. J. A. Sloane_, Nov 28 2007