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 A086128 #4 May 11 2007 03:00:00 %S A086128 831167,1154567,2502767,3019787,3675197,5056577,6352487,14519177 %N A086128 Duplicate of A023347. %K A086128 dead %O A086128 1,1