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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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 18 16:40 EST 2019. Contains 319271 sequences. (Running on oeis4.)