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 A144918 #14 Jul 21 2020 09:43:56 %S A144918 5,11,17,23,29,41,47,53,59,71,83,89,101,107,113,131,137,149,167,173, %T A144918 179,191,197,227,233,239,251,257,263,269,281,293,311,317,347,353,359, %U A144918 383,389,401,419,431,443,449,461,467,479,491,503,509,521,557,563,569,587 %N A144918 Duplicate of A007528. %K A144918 dead %O A144918 1,1