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 A032892 #9 Feb 12 2021 21:38:28
%S A032892 1,2,3,5,6,7,10,11,15,16,17,18,19,21,22,23,32,33,34,35,37,38,39,42,43,
%T A032892 48,49,50,51,53,54,55,58,59,63,80,81,82,83,85,86,87,96,97,98,99,101,
%U A032892 102,103,106,107,112,113,114,115,117,118,119
%N A032892 Numbers whose base-4 representation Sum_{i=0..m} d(i)*4^i has d(0) >= d(1) <= d(2) >= ...
%K A032892 nonn,base
%O A032892 1,2
%A A032892 _Clark Kimberling_