A029491 Numbers k that divide the (left) concatenation of all numbers <= k written in base 22 (most significant digit on left).

1, 3, 7, 9, 21, 49, 59, 67, 89, 147, 353, 1057, 1773, 4711, 6943, 29691, 40719, 51309, 57533, 116881, 155769, 178311, 207123, 9111701, 9636685, 10090955, 14397327, 21361545, 23023665, 50170565, 55533513, 72268665, 316155105, 635174505, 780744111, 932896685

Offset

1,2

Comments

a(52) > 3*10^10. - Jason Yuen, Jun 30 2024

Links

Jason Yuen, Table of n, a(n) for n = 1..51

Index entries for related sequences

Mathematica

b = 22; 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: A018326 A061975 A003547 * A018458 A029539 A018267

Adjacent sequences: A029488 A029489 A029490 * A029492 A029493 A029494

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), Jun 01 2001

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

a(24)-a(32) from Max Alekseyev, May 15 2011

Status

approved