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A220490
The largest n-digit number whose last k digits are divisible by k for k = 1..n.
0
9, 98, 996, 9996, 99960, 999960, 9999780, 99999360, 999999360, 9999999360, 99999951480
OFFSET
1,1
EXAMPLE
There are ten one-digit numbers divisible by 1 and the largest is 9 so a(1)=9.
For two-digit numbers, the ones digit must make it divisible by 2, which gives 98 as the largest to satisfy the requirement. So a(2)=98.
CROSSREFS
Cf. A164836.
Sequence in context: A057933 A064617 A225608 * A024115 A066557 A289214
KEYWORD
nonn,base
AUTHOR
Shyam Sunder Gupta, Aug 07 2013
STATUS
approved