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 A127383 #2 Mar 31 2012 13:21:14 %S A127383 1,1,1,2,6,15,46,141,446,1427,4722,15884,54224,187380 %N A127383 Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A127377/A127378. %Y A127383 A127384, A127385, A127389. %K A127383 nonn %O A127383 0,4 %A A127383 _Antti Karttunen_, Jan 16 2007