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A034091
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Records for sum of proper divisors function.
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8
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0, 1, 3, 6, 7, 8, 16, 21, 22, 36, 42, 55, 76, 108, 123, 140, 144, 156, 172, 240, 259, 312, 366, 384, 504, 531, 568, 656, 810, 924, 1032, 1056, 1140, 1260, 1356, 1698, 2040, 2088, 2216, 2520, 2644, 3108, 3474, 3480, 4272, 4572, 4844, 5280, 5304, 5412, 6840
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..372
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MATHEMATICA
| With[{list1=DeleteDuplicates[Array[DivisorSigma[1, #]-#&, 3000, 0]]}, list2 = {}; Table[If[list1[[n]]>Max[list2], AppendTo[list2, list1[[n]]]], {n, Length[ list1]}]; list2] (* From Harvey P. Dale, Dec 30 2011 *)
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CROSSREFS
| Cf. A001065, A034090.
Sequence in context: A189095 A188968 A189211 * A111717 A021735 A121550
Adjacent sequences: A034088 A034089 A034090 * A034092 A034093 A034094
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KEYWORD
| nonn,nice
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), J. Lowell (jhbubby(AT)avana.net)
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EXTENSIONS
| More terms from Erich Friedman (erich.friedman(AT)stetson.edu).
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