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A061978 Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 25 (most significant digit on right). 142
1, 3, 9, 21, 33, 57, 96, 864, 1033, 1661, 6449, 6624, 10464, 68249, 81664, 108981, 164384, 167571, 234311, 2420409, 5490464 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This sequence differs from A029542 in that all least significant zeros are kept during concatenation.

No more terms < 7*10^6.

LINKS

Table of n, a(n) for n=1..21.

Index entries for related sequences

EXAMPLE

See A061955 for example.

CROSSREFS

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

Sequence in context: A089322 A182632 A286590 * A031886 A147458 A169927

Adjacent sequences:  A061975 A061976 A061977 * A061979 A061980 A061981

KEYWORD

nonn,base

AUTHOR

Larry Reeves (larryr(AT)acm.org), May 24 2001

EXTENSIONS

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

a(20)-a(21) from Lars Blomberg, Jul 22 2011

STATUS

approved

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Last modified December 12 16:06 EST 2018. Contains 318077 sequences. (Running on oeis4.)