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 A037476 #13 Feb 16 2022 11:13:25 %S A037476 1,2,3,4,5,6,10,11,12,13,14,15,16,20,21,22,23,24,25,26,30,31,32,33,34, %T A037476 35,36,40,41,42,43,44,45,46,50,51,52,53,54,55,56,60,61,62,63,64,65,66, %U A037476 100,101,102,103,104,105,106,110,111,112,113 %N A037476 Duplicate of A007093. %F A037476 A007093 \ {0}. [From _R. J. Mathar_, Oct 20 2008] %K A037476 dead %O A037476 1,2 %A A037476 _Clark Kimberling_