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 A029486 #26 Jun 29 2024 10:51:13 %S A029486 1,111,269,512,1536,4499,4608,7401,9216,23552,420864,492544,3635712, %T A029486 7943997,8175681,11616768,12344832,20399616,49798656,77196800, %U A029486 91584000,162777600,210598400,261962240,305856000,379123200,1484144097,3318331392,8416131072 %N A029486 Numbers k that divide the (left) concatenation of all numbers <= k written in base 17 (most significant digit on left). %C A029486 No other terms below 3*10^10. %H A029486 <a href="/index/N#concat">Index entries for related sequences</a> %t A029486 b = 17; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[#, b], c], b], #] &] (* _Robert Price_, Mar 12 2020 *) %Y A029486 Cf. A029447-A029470, A029471-A029485, A029487-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978. %K A029486 nonn,base,more %O A029486 1,2 %A A029486 _Olivier Gérard_ %E A029486 More terms from Andrew Gacek (andrew(AT)dgi.net), Feb 21 2000 %E A029486 More terms from Larry Reeves (larryr(AT)acm.org), Jan 14 2002 %E A029486 Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002 %E A029486 a(13)-a(21) from _Max Alekseyev_, May 15 2011 %E A029486 a(22)-a(29) from _Jason Yuen_, Jun 29 2024