A029505 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 12 (most significant digit on right).

1, 2, 3, 4, 6, 11, 106, 616, 990, 1232, 1276, 1534, 3494, 8140, 43054, 52634, 97691, 99280, 131846, 136006, 355877, 617749, 824703, 2115058, 3011987

Offset: 1

Author

Olivier Gérard

Keywords

• nonn
• base
• more

Comments

This sequence differs from A061941 in that all least significant zeros are kept during concatenation.

No more terms < 10^7. - Lars Blomberg, Oct 07 2011

Examples

			See A029495 for example.
		

Links

• Index entries for related sequences

Crossrefs

Cf. A029447-A029470, A029471-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978.

Programs

Mathematica

b = 12; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, Reverse[IntegerDigits[#, b]]], b], #] &] (* Robert Price, Mar 12 2020 *)

Extensions

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

Additional comments and more terms from Larry Reeves (larryr(AT)acm.org), Jun 05 2001

a(22)-a(25) from Lars Blomberg, Oct 07 2011