%I #19 Jul 04 2021 01:57:37
%S 1,23,49,73,79,91,97,139,349,511,529,553,577,20401,25189,86227,92989,
%T 566257,1321649,2504263,11387783,52584187,73812233
%N Numbers k that divide the (left) concatenation of all numbers <= k written in base 24 (most significant digit on left).
%C No other terms below 10^8.
%H <a href="/index/N#concat">Index entries for related sequences</a>
%t b = 24; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[#, b], c], b], #] &] (* _Robert Price_, Mar 12 2020 *)
%Y Cf. A029447-A029470, A029471-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978.
%K nonn,base,more
%O 1,2
%A _Olivier GĂ©rard_
%E Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002; Aug 25 2002
%E a(19)-a(23) from _Max Alekseyev_, May 15 2011
|