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A219093
Denominator of the least reduced fraction b/c > 1 using divisors b and c of n.
4
1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 2, 1, 4, 3, 1, 1, 3, 1, 1, 1, 4, 1, 5, 1, 1, 1, 1, 5, 3, 1, 1, 1, 4, 1, 6, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 2, 5, 7, 1, 1, 1, 5, 1, 1, 7, 1, 5, 2, 1, 1, 1, 5, 1, 8, 1, 1, 3, 1, 7, 2, 1, 4, 1, 1, 1, 6, 5, 1, 1, 8
OFFSET
2,5
COMMENTS
The product b*c divides n.
LINKS
EXAMPLE
For n = 2,...,12, the fractions are 2/1, 3/1, 2/1, 5/1, 3/2, 7/1, 2/1, 3/1, 2/1, 11/1, 4/3, so that
A218993 = (2, 3, 2, 5, 3, 7, 2, 3, 2, 11, 4, ... );
A219093 = (1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 3, ... );
A219094 = (1, 1, 2, 1, 1, 1, 4, 3, 5, 1, 1, ... );
A219095 = (6, 12, 15, 18, 20, 21, 24, 28, 30, 35, 36, ... ).
MATHEMATICA
(See A218993.)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Feb 06 2013
STATUS
approved