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Search: id:A051594
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| A051594 |
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Maximal elements of pairs of "(-1)sigma amicable numbers", sorted by their minimal elements. |
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+0
2
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| 466200, 604656, 1103760, 2580048, 3652560, 5823216, 5255856, 5733288, 6941160, 7780968, 7738128, 11063448, 16588192
(list; graph; listen)
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OFFSET
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0,1
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FORMULA
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(-1)sigma(a) = (-1)sigma(b) = a+b where a<b. Here (-1)sigma(n) = A049060(n): If n = Product p(i)^r(i) then (-1)sigma(n) = Product(-1+Sum p(i)^s, s=1 to r(i)). This sequence gives the values of b; A051595 gives the values of a.
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CROSSREFS
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Cf. A051595, A049060.
Sequence in context: A134960 A134888 A114671 this_sequence A096889 A092010 A114673
Adjacent sequences: A051591 A051592 A051593 this_sequence A051595 A051596 A051597
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KEYWORD
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nonn,more
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AUTHOR
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Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp)
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EXTENSIONS
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Edited by Dean Hickerson (dean(AT)math.ucdavis.edu), Nov 06 2006
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