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 A060830 #3 Nov 10 2007 03:00:00 %S A060830 4,8,12,12,16,20,20,24,24,28,28,32,36,36,40,40,44,44,48,48,52,52,56, %T A060830 56,60,60,60,60,64,68,68,72,72,76,76,80,80,84,84,84,88,92,96,100,104, %U A060830 108,112,116,120,120,120,124,132,132,132,136,140,140,140 %N A060830 Erroneous version of A120427. %K A060830 dead %O A060830 1,1