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Search: id:A141547
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| A141547 |
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Numbers n whose abundance is 16. |
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+0
1
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| 550, 748, 1504, 7192, 7912, 10792, 17272, 30592, 1713592, 4526272, 8353792, 9928792, 11547352, 17999992, 89283592, 173482552, 361702144, 1081850752, 1845991216, 2146926592, 11097907192, 12985220152, 21818579968, 34357510144
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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lst={}; Do[If[n==Plus@@Divisors[n]-n-16, AppendTo[lst, n]], {n, 10^4}]; Print[lst];
lst = {}; Do[ If[2 n + 16 == DivisorSigma[1, n], AppendTo[lst, n]], {n, 10^8}]; lst - from Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 17 2008
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CROSSREFS
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Sequence in context: A103537 A136928 A013538 this_sequence A034282 A127347 A063877
Adjacent sequences: A141544 A141545 A141546 this_sequence A141548 A141549 A141550
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 16 2008
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EXTENSIONS
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a(9)-a(14) from Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 17 2008
a(15)-a(24) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Dec 21 2008
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