A061954 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 25 (most significant digit on right).

1, 3, 5, 9, 15, 21, 96, 99, 259, 1317, 2112, 52711, 72483, 124069, 633696, 651632, 2391984, 4317312, 8101536, 8344672

Offset: 1

Author

Larry Reeves (larryr(AT)acm.org), May 24 2001

Keywords

• nonn
• base
• more

Comments

This sequence differs from A029518 in that all least significant zeros are removed before concatenation.

No more terms < 10^7. [Lars Blomberg, Oct 26 2011]

Examples

			See A061931 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 = 25; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, IntegerDigits[IntegerReverse[#, b], b]], b], #] &] (* Robert Price, Mar 08 2020 *)

Extensions

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

a(15)-a(20) from Lars Blomberg, Oct 26 2011