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 A243000 #17 Mar 03 2015 09:32:58
%S A243000 1,0,0,4,0,0,0,6,0,0,0,8,0,0,0,0,0,0,0,0,6,4,0,0,0,0,0,2,0,0,0,0,0,0,
%T A243000 0,0,30,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,38,0,0,108,0,0,0,0,
%U A243000 0,0,0,0,0,0,0
%N A243000 max {A053695(k) | k < n+2} - max {A053695(k) | k < n+1}.
%Y A243000 Cf. A001223, A002386, A005250, A053695.
%K A243000 nonn,hard,more
%O A243000 1,4
%A A243000 _Farideh Firoozbakht_, May 31 2014