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 A182291 #36 Nov 16 2019 10:08:02 %S A182291 2,4,6,2,10,12,2,16,18,2,22,4,2,28,30,2,2,36,2,40,42,2,46,6,2,52,2,2, %T A182291 58,60,2,6,66,2,70,72,2,2,78,2,82,6,2,88,18,2,2,96,2,100,102,2,106,108 %N A182291 Duplicate of A071294. %K A182291 dead %O A182291 1,1 %A A182291 _R. J. Mathar_, Jul 03 2012