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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 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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