A029480 Numbers k that divide the (left) concatenation of all numbers <= k written in base 11 (most significant digit on left).

1, 5, 15, 24, 25, 40, 75, 104, 120, 200, 271, 600, 696, 744, 1571, 1779, 2425, 3920, 4592, 7213, 9615, 11417, 11681, 11805, 14928, 18000, 18800, 22597, 54000, 82640, 119760, 177000, 218600, 461625, 547592, 547640, 561975, 641800, 861400, 1133368, 1575435, 2628185, 3114965, 3992975, 4455400, 5902975, 6404952, 17862425, 24200673, 24629515, 26758880, 29749915, 29831776, 42704185, 46355725, 53164695, 54814075, 69283747, 85552800

Offset

1,2

Comments

a(89) > 3*10^10. - Jason Yuen, May 31 2024

Links

Jason Yuen, Table of n, a(n) for n = 1..88

Index entries for related sequences

Mathematica

b = 11; 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: A141394 A127256 A136139 * A029504 A354297 A066548

Adjacent sequences: A029477 A029478 A029479 * A029481 A029482 A029483

Keyword

nonn,base

Author

Olivier Gérard

Extensions

More terms from Andrew Gacek (andrew(AT)dgi.net), Feb 20 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(41)-a(59) from Max Alekseyev, May 16 2011

Status

approved