A029488 Numbers k that divide the (left) concatenation of all numbers <= k written in base 19 (most significant digit on left).

1, 3, 9, 24, 27, 40, 45, 65, 72, 85, 120, 135, 153, 216, 221, 333, 360, 440, 501, 543, 648, 1080, 1240, 1320, 2456, 2493, 3240, 3720, 3960, 4887, 5169, 5427, 6309, 6504, 6981, 7440, 9360, 10320, 11583, 12555, 14391, 16848, 18135, 18255, 22320, 28080, 28183, 28629, 37360, 38313, 51795, 52545, 54405, 59985, 66960, 84240, 89415, 96720, 101520, 118989, 152784, 925520, 3899205, 4756545, 6259240, 9604872, 13659624, 14446344, 17753256, 17784920, 18694341, 19484440, 20518065, 21377495, 23876424, 31787080, 36603495, 60454107, 80052861, 95747177, 98872632

Offset

1,2

Comments

a(102) > 3*10^10. - Jason Yuen, Jun 29 2024

Links

Jason Yuen, Table of n, a(n) for n = 1..101

Mathematica

b = 19; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[#, b], c], b], #] &] (* Robert Price, Mar 12 2020 *)

Crossrefs

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

Sequence in context: A145955 A129834 A376407 * A198681 A254010 A338124

Adjacent sequences: A029485 A029486 A029487 * A029489 A029490 A029491

Keyword

nonn,base

Author

Olivier Gérard

Extensions

More terms from Andrew Gacek (andrew(AT)dgi.net), Feb 21 2000

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

a(47)-a(81) from Max Alekseyev, May 16 2011

Status

approved