A169858 - OEIS

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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}.

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 January 17 11:57 EST 2021. Contains 340240 sequences. (Running on oeis4.)