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 A032867 #9 Feb 12 2021 22:06:01
%S A032867 1,2,3,4,5,8,9,10,12,13,14,15,16,17,18,19,21,22,23,32,33,34,35,37,38,
%T A032867 39,42,43,48,49,50,51,53,54,55,58,59,63,64,68,69,72,73,74,76,77,78,79,
%U A032867 84,85,88,89,90,92,93,94,95,128,132,133,136,137
%N A032867 Numbers whose base-4 representation Sum_{i=0..m} d(i)*4^i has d(m) >= d(m-1) <= d(m-2) >= ...
%K A032867 nonn,base
%O A032867 1,2
%A A032867 _Clark Kimberling_