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 A048461 #6 Oct 14 2019 23:41:34 %S A048461 2,3,5,7,10,11,13,16,17,19,20,23,28,29,30,31,32,37,40,41,43,44,47,48, %T A048461 52,53,54,56,59,61,66,67,68,71,72,73,79,80,82,83,88,89,94,96,97,101, %U A048461 103,106,107,109,112,113,114,125,126,127,131,132,137,139,140,146,149 %N A048461 Numbers in sorted order taken from all generations. %Y A048461 Cf. A048448-A048455. See also A047844. %K A048461 nonn %O A048461 0,1 %A A048461 _Patrick De Geest_, May 15 1999