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%I #24 Jul 04 2021 01:57:17
%S 1,17,49,73,289,307,1297,3013,8959,664831,1399549,5122561,8515193,
%T 11012719,65998063
%N Numbers k that divide the (left) concatenation of all numbers <= k written in base 18 (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 = 18; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[#, b], c], b], #] &] (* _Robert Price_, Mar 12 2020 *)
%K nonn,base,more
%O 1,2
%A _Olivier Gérard_
%E More terms from Andrew Gacek (andrew(AT)dgi.net), Feb 21 2000
%E a(9) corrected by Larry Reeves (larryr(AT)acm.org), Jan 14 2002
%E Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002
%E a(10)-a(15) from _Max Alekseyev_, May 15 2011
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