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A227765
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First n-fold perfect number divided by 6, or 0 if the quotient is not an integer.
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6
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OFFSET
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1,3
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COMMENTS
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The first n-fold perfect numbers are A007539(n) = 1, 6, 120, 30240, 14182439040, ..., for n = 1, 2, 3, 4, 5, ...
The first n-fold perfect numbers divided by 120 is A227766.
The first n-fold perfect numbers divided by 30240 is A227767.
The first n-fold perfect numbers divided by 14182439040 is A227768.
For additional comments, references, links, and cross-refs, see A007539.
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LINKS
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FORMULA
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a(n) = A007539(n)/6 if 2 <= n <= 8.
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EXAMPLE
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The first 3-fold perfect number is A007539(3) = 120, so a(3) = 120/6 = 20.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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