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 A023892 #5 Mar 30 2012 17:20:42 %S A023892 1,3,1,3,1,3,8,-5,1,23,1,-9,1,-32,46,75,-50,3,1,-117,92,135,1,79,-274, %T A023892 -257,433,80,175,518,-1146,-757,859,-218,1688,1539,-3736,-947,469, %U A023892 -965,7463,1186,-8212,1191,-8819 %N A023892 Derivative of log of A007360. %K A023892 sign %O A023892 1,2 %A A023892 _Olivier Gérard_