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 A032854 #9 Feb 12 2021 21:05:40 %S A032854 1,2,3,4,5,6,8,9,10,11,12,13,16,17,18,19,20,24,25,26,27,32,33,34,40, %T A032854 41,48,56,57,63,64,65,70,71,72,73,77,78,79,80,81,84,85,86,87,88,89,91, %U A032854 92,93,94,95,96,97,112,113,114,119,120,121,122 %N A032854 Numbers whose base-7 representation Sum_{i=0..m} d(i)*7^i has d(m) <= d(m-1) >= d(m-2) <= ... %K A032854 nonn,base %O A032854 1,2 %A A032854 _Clark Kimberling_