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A112909 a(n) is the least positive integer in base 10 containing n nines that is divisible by n. 1

%I #4 Mar 31 2012 14:11:25

%S 9,990,999,99992,999990,9999990,49999999,999999992,999999999,

%T 99999999990,999999999999,9999999999996,39999999999999,

%U 999999999999994,9999999999999990,999999999999990992,995999999999999999

%N a(n) is the least positive integer in base 10 containing n nines that is divisible by n.

%F a(n) = n*A112910(n).

%e a(4) = 99992 because 99992 contains 4 nines and is divisible by 4.

%Y Cf. A112889-A112898, A112900-A112905, A112907-A112910.

%K base,nonn

%O 1,1

%A _Ray G. Opao_, Oct 05 2005

%E Extended by _Ray Chandler_, Oct 09 2005

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Last modified June 1 11:45 EDT 2024. Contains 373018 sequences. (Running on oeis4.)