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 A029482 #26 Jun 01 2024 04:41:00 %S A029482 1,3,9,15,21,35,53,64,105,192,320,448,576,960,1344,2583,2611,2688, %T A029482 4480,5760,8064,8865,12160,13440,23168,28413,131727,201349,654231, %U A029482 901299,1121799,2629184,11874240,13712832,35644608,68560525,76680065,79404800,97064075 %N A029482 Numbers k that divide the (left) concatenation of all numbers <= k written in base 13 (most significant digit on left). %C A029482 a(84) > 3*10^10. - _Jason Yuen_, May 31 2024 %H A029482 Jason Yuen, <a href="/A029482/b029482.txt">Table of n, a(n) for n = 1..83</a> %H A029482 <a href="/index/N#concat">Index entries for related sequences</a> %t A029482 b = 13; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[#, b], c], b], #] &] (* _Robert Price_, Mar 12 2020 *) %Y A029482 Cf. A029447-A029470, A029471-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978. %K A029482 nonn,base %O A029482 1,2 %A A029482 _Olivier Gérard_ %E A029482 More terms from Andrew Gacek (andrew(AT)dgi.net), Feb 20 2000 %E A029482 More terms from Larry Reeves (larryr(AT)acm.org), May 24 2001 %E A029482 Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002 %E A029482 a(29)-a(39) from _Max Alekseyev_, May 16 2011