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A087342 Smallest multiple of n which is the concatenation of n successive numbers in descending order, or 0 if no such number exists. 1
1, 32, 321, 5432, 98765, 765432, 22212019181716, 98765432, 987654321, 19181716151413121110, 2019181716151413121110, 1312111098765432, 19181716151413121110987, 2928272625242322212019181716 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

a(7) = 22212019181716 is the concatenation of 22,21,20,19,18,17 and 16 and is divisible by 7.

CROSSREFS

Cf. A087343.

Sequence in context: A239422 A165008 A095152 * A083468 A125395 A126553

Adjacent sequences:  A087339 A087340 A087341 * A087343 A087344 A087345

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Sep 06 2003

EXTENSIONS

More terms from David Wasserman, May 10 2005

STATUS

approved

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Last modified March 29 02:19 EDT 2020. Contains 333104 sequences. (Running on oeis4.)