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A169858 Smallest integer k such that k or one of its left substrings (or prefixes, regarded as an integer) is divisible by any integer from {1,2,...,n}. 3
1, 2, 6, 12, 45, 60, 245, 245, 504, 504, 5049, 5049, 10296, 11760, 11760, 11760, 56160, 56160, 198016, 198016, 1008159, 1323008, 2340849, 6240366, 13442580, 13442580, 37536408, 37536408, 75432065, 75432065, 180092645, 319800096, 319800096, 800640126, 2201169600, 2201169600, 3780487275, 5250966084, 5250966084, 6832425609, 36960308625, 36960308625, 62244072512, 62244072512, 62244072512, 62244072512, 372960042489, 372960042489 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

More formally: a(n) = min m: forall d in {1..n}: exists k in {0..log_10(m)}: d | floor(m / 10^k)

LINKS

Table of n, a(n) for n=1..48.

Hugo van der Sanden A169858-0.03.tar.bz2: C source code to calculate terms.

CROSSREFS

Cf. A177834, A175516.

Sequence in context: A261467 A180070 A177834 * A292132 A208147 A152873

Adjacent sequences:  A169855 A169856 A169857 * A169859 A169860 A169861

KEYWORD

nonn,base

AUTHOR

Hugo van der Sanden, Jun 01 2010

EXTENSIONS

Corrected and extended by Hugo van der Sanden, Jun 04 2010 (errors reported by Zak Seidov).

STATUS

approved

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Last modified July 6 16:17 EDT 2020. Contains 335478 sequences. (Running on oeis4.)