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 A127283 #2 Mar 31 2012 13:21:13 %S A127283 1,1,2,3,4,14,18,38,158,190,618,1274,17094 %N A127283 Maximum cycle size in range [A014137(n-1)..A014138(n-1)] of permutation A126315/A126316. %Y A127283 A127279. %K A127283 nonn %O A127283 0,3 %A A127283 _Antti Karttunen_, Jan 16 2007