A061948 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 19 (most significant digit on right).

1, 3, 9, 27, 29, 36, 39, 53, 72, 108, 180, 189, 360, 900, 1008, 1885, 1899, 2877, 3120, 4272, 6975, 14319, 16203, 18724, 19959, 24777, 30071, 38376, 84748, 85053, 90843, 108412, 121996, 155556, 327321, 366128, 545949, 727236, 1332360, 1847072, 3090195, 3229872

Offset

1,2

Comments

This sequence differs from A029512 in that all least significant zeros are removed before concatenation.

No more terms < 10^7. [Lars Blomberg, Oct 23 2011]

Links

Table of n, a(n) for n=1..42.

Index entries for related sequences

Example

See A061931 for example.

Mathematica

b = 19; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, IntegerDigits[IntegerReverse[#, b], b]], b], #] &] (* Robert Price, Mar 08 2020 *)

Crossrefs

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

Sequence in context: A070357 A131137 A370871 * A018644 A349929 A111117

Adjacent sequences: A061945 A061946 A061947 * A061949 A061950 A061951

Keyword

nonn,base

Author

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

Extensions

Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002; Aug 25, 2002

a(40)-a(42) from Lars Blomberg, Oct 23 2011

Status

approved