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Search: id:A060766
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| A060766 |
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Least common multiple of differences between consecutive divisors of n (ordered by size). |
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+0
4
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| 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
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OFFSET
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2,2
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EXAMPLE
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For n=98, divisors={1,2,7,14,49,98}; differences={1,5,7,35,49}; a(98) = LCM of differences = 245.
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MATHEMATICA
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a[n_ ] := LCM@@(Drop[d=Divisors[n], 1]-Drop[d, -1])
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CROSSREFS
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Cf. A060680-A060682.
Sequence in context: A067240 A126080 A060681 this_sequence A029578 A054345 A060367
Adjacent sequences: A060763 A060764 A060765 this_sequence A060767 A060768 A060769
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Apr 24 2001
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EXTENSIONS
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Edited by Dean Hickerson (dean(AT)math.ucdavis.edu), Jan 22 2002
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