A078252 - OEIS

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A078252

Smallest n-digit multiple of n in which the even-numbered digits are all equal and the odd-numbered digits are all equal, or 0 if no such number exists.

1

1, 10, 111, 1212, 50505, 101010, 7070707, 16161616, 111111111, 1010101010, 29292929292, 121212121212, 0, 14141414141414, 525252525252525, 1616161616161616, 0, 101010101010101010, 0, 20202020202020202020

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..20.

CROSSREFS

Sequence in context: A290618 A290626 A087545 * A014993 A015592 A122574

Adjacent sequences: A078249 A078250 A078251 * A078253 A078254 A078255

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Nov 24 2002

EXTENSIONS

Corrected and extended by Sascha Kurz, Jan 04 2003

STATUS

approved