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A061933 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 4 (most significant digit on right). 1
1, 2, 3, 9, 15, 21, 162, 495, 614, 813, 174913, 240389, 704162 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

This sequence differs from A029497 in that all least significant zeros are removed before concatenation.

The next term is > 400000. - Larry Reeves, Jan 16, 2002

LINKS

Index entries for related sequences

EXAMPLE

See A061931 for example.

CROSSREFS

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

Sequence in context: A056702 A091361 A092352 * A124881 A054416 A092638

Adjacent sequences:  A061930 A061931 A061932 * A061934 A061935 A061936

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

One more term. Next term exceeds 10000000. Sean A. Irvine (sairvin(AT)xtra.co.nz), Sep 03 2009

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Last modified February 15 17:13 EST 2012. Contains 205828 sequences.