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A088944
a(n) = least k such that for any m>=0 k*sum(1<=u<=v<=w<=m,u^n*v/w) is an integer.
1
6, 12, 60, 60, 84, 84, 60, 60, 132, 132, 5460, 5460, 12, 12, 1020, 1020, 1596, 1596, 660, 660, 276, 276, 5460, 5460, 12, 12, 60, 60, 28644, 28644, 1020, 1020
OFFSET
0,1
FORMULA
for n>=1 a(2n+1)=a(2n)
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Oct 25 2003
STATUS
approved