A029481 Numbers k that divide the (left) concatenation of all numbers <= k written in base 12 (most significant digit on left).

1, 11, 19, 25, 29, 43, 55, 121, 133, 145, 523, 605, 2311, 37573, 1904177, 2110097, 83792621, 1200134339, 1606732787, 28537884331

Offset

1,2

Comments

No other terms below 3*10^10.

Links

Table of n, a(n) for n=1..20.

Index entries for related sequences

Mathematica

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

Crossrefs

Sequence in context: A084654 A089172 A152567 * A289700 A231012 A231007

Adjacent sequences: A029478 A029479 A029480 * A029482 A029483 A029484

Keyword

nonn,base,more

Author

Olivier Gérard

Extensions

2311 from Andrew Gacek (andrew(AT)dgi.net), Feb 20 2000

a(14) from Larry Reeves (larryr(AT)acm.org), Jan 16 2002

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

a(15)-a(17) from Max Alekseyev, May 16 2011

a(18)-a(20) from Jason Yuen, May 31 2024

Status

approved