A029460 Numbers k that divide the (right) concatenation of all numbers <= k written in base 15 (most significant digit on left).

1, 3, 5, 7, 15, 20, 21, 25, 28, 33, 35, 36, 45, 49, 60, 63, 68, 75, 84, 100, 105, 140, 147, 175, 180, 196, 204, 207, 225, 245, 252, 287, 300, 315, 375, 420, 441, 500, 525, 540, 588, 675, 700, 724, 735, 756, 805, 875, 879, 900, 945, 980, 1125, 1225, 1260, 1323

Offset: 1

Author

Olivier Gérard

Keywords

• nonn
• base

Links

• Robert Price, Table of n, a(n) for n = 1..149

Crossrefs

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

Programs

Mathematica

b = 15; c = {}; Select[Range[10^5], Divisible[FromDigits[c = Join[c, IntegerDigits[#, b]], b], #] &] (* Robert Price, Mar 11 2020 *)