

A029478


Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 9 (most significant digit on left).


0



1, 13, 19, 37, 128, 640, 1235, 1280, 6086551, 18540032, 23525888, 46727680, 82391552
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OFFSET

1,2


COMMENTS

No other terms below 10^8.


LINKS

Table of n, a(n) for n=1..13.
Index entries for related sequences


MATHEMATICA

Select[Range[1, 2000], Mod[FromDigits[Flatten[Reverse[Table[IntegerDigits[m, 9], {m, 1, # }]]], 9], # ] == 0 &]  Peter Bertok Nov 26 2001


CROSSREFS

Sequence in context: A048523 A000922 A107188 * A252021 A216101 A096455
Adjacent sequences: A029475 A029476 A029477 * A029479 A029480 A029481


KEYWORD

nonn,base,more


AUTHOR

Olivier Gérard


EXTENSIONS

Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002
a(9)a(13) from Max Alekseyev, May 15 2011


STATUS

approved



