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A061961 Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 8 (most significant digit on right). 1
1, 7, 21, 123, 147, 341, 457, 2387, 3919, 19859, 42623, 495509, 5380575, 5382069, 6798589 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This sequence differs from A029525 in that all least significant zeros are kept during concatenation.

No more terms < 10^7. [Lars Blomberg, Aug 22 2011]

LINKS

Table of n, a(n) for n=1..15.

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: A001185 A001693 A321521 * A028248 A267609 A032032

Adjacent sequences:  A061958 A061959 A061960 * A061962 A061963 A061964

KEYWORD

nonn,base,more

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(12)-a(15) from Lars Blomberg, Aug 22 2011

STATUS

approved

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Last modified January 17 14:12 EST 2019. Contains 319225 sequences. (Running on oeis4.)