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 A053453 #22 Jun 14 2021 01:23:23 %S A053453 1,1,6,1,2,6,16,18,6,22,3,28,15,2,3,6,5,21,46,42,16,13,18,58,60,6,33, %T A053453 22,35,8,6,13,9,41,28,44,6,15,96,2,4,34,53,108,3,112,6,48,22,5,42,21, %U A053453 130,18,8,46,46,6,42,148,75,16,78,13,66,81,166,78,18,43,58,178,180,60 %N A053453 Duplicate of A002329. %K A053453 dead %O A053453 1,3