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 A080201 #3 Mar 31 2012 10:29:02 %S A080201 49,50,71,72,76,82,90,93,95,96,119,128,139,143,152,162,172,173,180, %T A080201 182,185,188 %N A080201 Numbers that do not occur as differences between terms of the Mian-Chowla variant A051788. %C A080201 Terms are only conjectures. Elements might be eliminated by higher terms of A051788, which was checked up to 4*10^6. %D A080201 See under A005282. %H A080201 Hugo Pfoertner, <a href="http://www.randomwalk.de/sequences/a080200.txt">FORTRAN program to create the Mian-Chowla sequence</a> %o A080201 FORTRAN program available at link. Setting of initial terms has to be modified as indicated in the comment. %Y A080201 Cf. A051788, A005282, A080200. %K A080201 more,nonn %O A080201 1,1 %A A080201 _Hugo Pfoertner_, Feb 05 2003