A029507 - OEIS

A029507

Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 14 (most significant digit on right).

1, 2, 6, 7, 10, 13, 86, 197, 408, 498, 520, 936, 1362, 1636, 1716, 1980, 2392, 6718, 7709, 17498, 89190, 100463, 120133, 168169, 177840, 477984, 493806, 2648444, 3922637, 5012137

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OFFSET

1,2

COMMENTS

This sequence differs from A061943 in that all least significant zeros are kept during concatenation.

No more terms < 10^7. [Lars Blomberg, Oct 08 2011]

LINKS

Table of n, a(n) for n=1..30.

Index entries for related sequences

EXAMPLE

See A029495 for example.

MATHEMATICA

b = 14; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, Reverse[IntegerDigits[#, b]]], b], #] &] (* Robert Price, Mar 13 2020 *)

CROSSREFS

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

Sequence in context: A014862 A180626 A061943 * A047552 A287453 A287449

Adjacent sequences: A029504 A029505 A029506 * A029508 A029509 A029510

KEYWORD

nonn,base,more

AUTHOR

Olivier Gérard

EXTENSIONS

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

Additional comments and more terms from Larry Reeves (larryr(AT)acm.org), May 25 2001

a(26)-a(30) from Lars Blomberg, Oct 08 2011

STATUS

approved