A029540 - OEIS

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A029540

Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 23 (most significant digit on right).

1, 11, 35, 44, 121, 605, 2156, 8492, 8844, 9152, 58300, 134023, 172051, 181092, 190124, 200656, 261063, 287101, 746493, 779471, 3080351, 7868996, 8724407

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OFFSET

1,2

COMMENTS

This sequence differs from A061976 in that all least significant zeros are removed before concatenation.

No more terms < 10^7. [Lars Blomberg, Sep 29 2011]

LINKS

Table of n, a(n) for n=1..23.

Index entries for related sequences

EXAMPLE

See A029519 for example.

MATHEMATICA

b = 23; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[IntegerReverse[#, b], b], c], b], #] &] (* Robert Price, Mar 13 2020 *)

CROSSREFS

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

Sequence in context: A184207 A114445 A054475 * A319971 A118554 A348845

Adjacent sequences: A029537 A029538 A029539 * A029541 A029542 A029543

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(19)-a(23) from Lars Blomberg, Sep 29 2011

STATUS

approved