A029535 Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 18 (most significant digit on right and removing all least significant zeros before concatenation).

1, 17, 323, 8429, 49127, 98753, 185509, 4300535, 8296187

Offset: 1

Author

Olivier Gérard

Keywords

• nonn
• base
• more

Comments

This sequence differs from A061971 in that all least significant zeros are removed before concatenation.

No more terms < 10^7. [Lars Blomberg, Sep 22 2011]

Examples

			See A029519 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 = 18; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[IntegerReverse[#, b], b], c], b], #] &] (* Robert Price, Mar 13 2020 *)

Extensions

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

Additional comments from Larry Reeves (larryr(AT)acm.org), Jun 01 2001

a(5)-a(7) from Larry Reeves Jul 16 2001

a(8)-a(9) from Lars Blomberg, Sep 22 2011