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 A025518 #5 Mar 30 2012 18:35:25 %S A025518 5,8,89,374,467,6348,6965,7172,7265,7562,7967,20334,20367,21978,22005, %T A025518 25634,25661,25688,27965,39180,39207,42394,43125,43146,48633,48726, %U A025518 48753,49010,49037,49064,49091,49860,50077,50086,50383,50410,50955,51340,52239 %N A025518 Least k such that first k terms of A022303 contain n more 2's than 1's. %K A025518 nonn %O A025518 1,1 %A A025518 _David W. Wilson_