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A112909
a(n) is the least positive integer in base 10 containing n nines that is divisible by n.
1
9, 990, 999, 99992, 999990, 9999990, 49999999, 999999992, 999999999, 99999999990, 999999999999, 9999999999996, 39999999999999, 999999999999994, 9999999999999990, 999999999999990992, 995999999999999999
OFFSET
1,1
FORMULA
a(n) = n*A112910(n).
EXAMPLE
a(4) = 99992 because 99992 contains 4 nines and is divisible by 4.
KEYWORD
base,nonn
AUTHOR
Ray G. Opao, Oct 05 2005
EXTENSIONS
Extended by Ray Chandler, Oct 09 2005
STATUS
approved