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 A141374 #14 Jul 14 2019 17:41:33 %S A141374 5,29,53,101,149,173,197,269,293,317,389,461,509,557,653,677,701,773, %T A141374 797,821,941,1013,1061,1109,1181,1229,1277,1301,1373,1493,1613,1637, %U A141374 1709,1733,1877,1901,1949,1973,1997,2069,2141,2213,2237,2309,2333,2357,2381,2477 %N A141374 Duplicate of A107003. %K A141374 dead %O A141374 1,1