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 A032868 #9 Feb 12 2021 22:06:06
%S A032868 1,2,3,4,5,6,10,11,12,15,16,17,18,20,21,22,23,24,25,26,27,28,29,31,32,
%T A032868 33,34,50,51,52,53,54,56,57,58,59,62,63,64,75,76,77,78,79,81,82,83,84,
%U A032868 87,88,89,93,94,100,101,102,103,104,106,107
%N A032868 Numbers whose base-5 representation Sum_{i=0..m} d(i)*5^i has d(m) >= d(m-1) <= d(m-2) >= ...
%K A032868 nonn,base
%O A032868 1,2
%A A032868 _Clark Kimberling_