A029522 Numbers k such that k divides the (left) concatenation of all numbers <= k written in base 5 (most significant digit on right).

1, 8, 16, 19, 1208, 3187, 5352, 30984, 80976, 126944, 670251, 5306279, 7640616

Offset

1,2

Comments

This sequence differs from A061958 in that all least significant zeros are removed before concatenation.

No more terms < 10^7. [Lars Blomberg, Sep 04 2011]

Links

Table of n, a(n) for n=1..13.

Index entries for related sequences

Example

See A029519 for example.

Mathematica

b = 5; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[IntegerReverse[#, b], b], c], b], #] &] (* Robert Price, Mar 13 2020 *)

Crossrefs

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

Sequence in context: A260409 A257509 A232570 * A033309 A114435 A327092

Adjacent sequences: A029519 A029520 A029521 * A029523 A029524 A029525

Keyword

nonn,base,more

Author

Olivier Gérard

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), May 25 2001

a(11)-a(13) from Lars Blomberg, Sep 04 2011

Status

approved