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A051595
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Minimal elements of pairs of "(-1)sigma amicable numbers", sorted by their minimal elements.
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1
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429552, 497808, 800496, 2472912, 3329712, 4925808, 5033808, 5470632, 5756616, 7584408, 7696368, 8498952, 13172000, 14484816, 16112304, 17901936, 18349776, 20867184, 21395600, 21895920, 22581000, 24395200, 24805872, 27369900
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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FORMULA
| (-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 a; A051594 gives the values of b.
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CROSSREFS
| Cf. A051594, A049060.
Sequence in context: A204412 A192228 A206082 * A186593 A117318 A085092
Adjacent sequences: A051592 A051593 A051594 * A051596 A051597 A051598
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KEYWORD
| nonn
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AUTHOR
| Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp)
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EXTENSIONS
| Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Nov 06 2006
More terms from Max Alekseyev (maxale(AT)gmail.com), Jan 31 2010
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