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A060766 Least common multiple of differences between consecutive divisors of n (ordered by size). 3
1, 2, 2, 4, 3, 6, 4, 6, 15, 10, 6, 12, 35, 10, 8, 16, 9, 18, 10, 28, 99, 22, 12, 20, 143, 18, 42, 28, 60, 30, 16, 88, 255, 28, 18, 36, 323, 130, 60, 40, 21, 42, 154, 60, 483, 46, 24, 42, 75, 238, 234, 52, 27, 132, 84, 304, 783, 58, 60, 60, 899, 84, 32, 104, 165, 66, 442 (list; graph; refs; listen; history; internal format)
OFFSET

2,2

EXAMPLE

For n=98, divisors={1,2,7,14,49,98}; differences={1,5,7,35,49}; a(98) = LCM of differences = 245.

MATHEMATICA

a[n_ ] := LCM@@(Drop[d=Divisors[n], 1]-Drop[d, -1])

CROSSREFS

Cf. A060680-A060682.

Sequence in context: A060681 A202479 A161660 * A029578 A054345 A060367

Adjacent sequences:  A060763 A060764 A060765 * A060767 A060768 A060769

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Apr 24 2001

EXTENSIONS

Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Jan 22 2002

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Last modified February 17 13:10 EST 2012. Contains 206030 sequences.