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A074158 Smallest multiple of n which begins with the concatenation of first n natural numbers. 1
1, 12, 123, 12340, 12345, 123456, 12345676, 123456784, 123456789, 12345678910, 12345678910114, 123456789101112, 1234567891011121303, 12345678910111213142, 123456789101112131415, 123456789101112131415168 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..16.

EXAMPLE

a(7) = 12345676 = 1763668*7 which starts with 1234567.

CROSSREFS

Sequence in context: A226737 A077306 A117640 * A071269 A061088 A176556

Adjacent sequences:  A074155 A074156 A074157 * A074159 A074160 A074161

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Aug 29 2002

EXTENSIONS

More terms from Sascha Kurz, Jan 15 2003

STATUS

approved

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Last modified March 22 10:07 EDT 2019. Contains 321421 sequences. (Running on oeis4.)