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A112900
a(n) is the least positive integer in base 10 containing n fives that is divisible by n.
19
5, 550, 555, 55552, 55555, 5555550, 35555555, 555555552, 555555555, 55555555550, 555555555555, 5555555555556, 52555555555555, 1555555555555554, 555555555555555, 55555555555555552, 515555555555555555
OFFSET
1,1
FORMULA
a(n) = n*A112901(n).
EXAMPLE
a(4) = 55552 because 55552 contains 4 fives and is divisible by 4.
KEYWORD
base,nonn
AUTHOR
Ray G. Opao, Oct 05 2005
EXTENSIONS
Extended by Ray Chandler and Brandon S. Paster (bsp11(AT)psu.edu), Oct 09 2005
STATUS
approved