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 A123032 #10 Nov 03 2011 10:08:48 %S A123032 3,307,487,9043,16871,17293,17863,23057,32359,32801,33857,36739,40787, %T A123032 43669,50599,59051,59113,62417,65537,76099,101267,104149,107777, %U A123032 135893,160073,161053,164419,249107,249857,256609,259733,266663,338909,340649 %N A123032 Duplicate of A085319. %K A123032 dead %O A123032 1,1