A029498 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 5 (most significant digit on right).

1, 7, 16, 96, 103, 112, 224, 864, 6736, 134208, 292464, 1000176, 5891856, 9647136

Offset

1,2

Comments

This sequence differs from A061934 in that all least significant zeros are kept during concatenation.

No more terms < 10^7. - Lars Blomberg, Oct 02 2011

Links

Table of n, a(n) for n=1..14.

Index entries for related sequences

Example

See A029495 for example.

Mathematica

b = 5; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, Reverse[IntegerDigits[#, b]]], b], #] &] (* Robert Price, Mar 12 2020 *)

Crossrefs

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

Sequence in context: A192376 A363173 A214904 * A351531 A181777 A332573

Adjacent sequences: A029495 A029496 A029497 * A029499 A029500 A029501

Keyword

nonn,base,more

Author

Olivier Gérard

Extensions

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

Additional comments from Larry Reeves (larryr(AT)acm.org), May 25 2001

a(10)-a(11) from Larry Reeves (larryr(AT)acm.org), Jun 15 2001, Jan 16 2002

a(12)-a(14) from Lars Blomberg, Oct 02 2011

Status

approved