A029499 - OEIS

A029499

Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 6 (most significant digit on right).

%I #18 Mar 12 2020 21:15:37

%S 1,2,3,5,37,73,80,104,135,149,160,170,2860,3547,63335,112405,198734,

%T 703957,1353979

%N Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 6 (most significant digit on right).

%C This sequence differs from A061935 in that all least significant zeros are kept during concatenation.

%C No more terms < 10^7. - _Lars Blomberg_, Oct 03 2011

%H <a href="/index/N#concat">Index entries for related sequences</a>

%e See A029495 for example.

%t b = 6; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, Reverse[IntegerDigits[#, b]]], 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 Gérard_

%E Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002

%E Additional comments and more terms from Larry Reeves (larryr(AT)acm.org), May 25 2001

%E a(18)-a(19) from _Lars Blomberg_, Oct 03 2011