%I #20 Jul 04 2021 01:58:39
%S 1,7,13,17,35,49,65,245,305,679,889,1421,2231,2891,3623,31943,59365,
%T 113141,143755,193595,367673,414545,1133461,4916897
%N Numbers k that divide the (left) concatenation of all numbers <= k written in base 8 (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 = 8; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[#, b], c], b], #] &] (* _Robert Price_, Mar 12 2020 *)
%Y Cf. A007094.
%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 More terms from Andrew Gacek (andrew(AT)dgi.net), Feb 20 2000
%E More terms from Larry Reeves (larryr(AT)acm.org), Jun 01 2001
%E Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002
%E a(23), a(24) from _Max Alekseyev_, May 14 2011
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