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 A061935 #15 Mar 08 2020 00:25:07
%S A061935 1,2,3,5,11,35,55,80,135,145,160,560,735,1016,29787,31360,60095,
%T A061935 111625,165705,192140,225280,618701,780230,5503475
%N A061935 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 6 (most significant digit on right).
%C A061935 This sequence differs from A029499 in that all least significant zeros are removed before concatenation.
%C A061935 No more terms < 10^7. [_Lars Blomberg_, Oct 17 2011]
%H A061935 <a href="/index/N#concat">Index entries for related sequences</a>
%e A061935 See A061931 for example.
%t A061935 b = 6; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, IntegerDigits[IntegerReverse[#, b], b]], b], #] &] (* _Robert Price_, Mar 07 2020 *)
%Y A061935 Cf. A029447-A029470, A029471-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978.
%K A061935 nonn,base,more
%O A061935 1,2
%A A061935 Larry Reeves (larryr(AT)acm.org), May 24 2001
%E A061935 Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002
%E A061935 a(22)-a(24) from _Lars Blomberg_, Oct 17 2011