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 A084327 #5 Sep 29 2006 03:00:00 %S A084327 0,1,9,72,567,4455,34992,274833,2158569,16953624,133155495,1045816839 %N A084327 Duplicate of A057085. %K A084327 dead %O A084327 0,3