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 A029461 #12 Jul 04 2021 01:59:19
%S A029461 1,2,3,4,5,6,8,9,10,12,15,16,20,24,25,30,32,40,48,50,60,64,75,80,83,
%T A029461 96,100,120,122,124,128,150,160,192,200,240,256,270,285,288,300,320,
%U A029461 342,360,384,397,400,432,450,456,474,480,512,513,540,552,570,576,600
%N A029461 Numbers k that divide the (right) concatenation of all numbers <= k written in base 16 (most significant digit on left).
%H A029461 Robert Price, <a href="/A029461/b029461.txt">Table of n, a(n) for n = 1..178</a>
%t A029461 b = 16; c = {}; Select[Range[10^5], Divisible[FromDigits[c = Join[c, IntegerDigits[#, b]], b], #] &] (* _Robert Price_, Mar 11 2020 *)
%Y A029461 Cf. A029447-A029470, A029471-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978.
%K A029461 nonn,base
%O A029461 1,2
%A A029461 _Olivier Gérard_