A029494 Numbers k that divide the (left) concatenation of all numbers <= k written in base 25 (most significant digit on left).

1, 3, 9, 21, 39, 71, 101, 111, 128, 239, 251, 384, 401, 419, 521, 1152, 1664, 4992, 14976, 21617, 23296, 29952, 34437, 36608, 45312, 51183, 92928, 117481, 191232, 225043, 255309, 742144, 910592, 1374464, 4074467, 5427968, 10461747, 10528128, 10897536, 14721408, 15387264, 15529344, 18626688, 20796849, 27863424, 28862509, 32013423, 41722496, 47329152, 52894873, 64367901, 66678144, 68195712, 77870208

Offset

1,2

Comments

a(73) > 3*10^10. - Jason Yuen, Jun 30 2024

Links

Jason Yuen, Table of n, a(n) for n = 1..72

Index entries for related sequences

Mathematica

b = 25; 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: A292392 A112039 A007518 * A059774 A064999 A100135

Adjacent sequences: A029491 A029492 A029493 * A029495 A029496 A029497

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

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

a(32)-a(54) from Max Alekseyev, May 16 2011

Status

approved