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#35 by Charles R Greathouse IV at Thu Sep 08 08:46:09 EDT 2022
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| PROG
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(MAGMAMagma) [n: n in [1..1000 by 2] | IsOdd(n) and SumOfDivisors(n) lt 2*n]
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Discussion
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| Thu Sep 08
| 08:46
| OEIS Server: https://oeis.org/edit/global/2944
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#34 by Harvey P. Dale at Wed Jun 22 12:59:27 EDT 2022
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#33 by Harvey P. Dale at Wed Jun 22 12:59:24 EDT 2022
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| MATHEMATICA
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Select[Range[1, 151, 2], DivisorSigma[1, #]<2 #&] (* Harvey P. Dale, Jun 22 2022 *)
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| STATUS
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approved
editing
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#32 by R. J. Mathar at Fri Nov 20 07:05:29 EST 2020
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#31 by R. J. Mathar at Fri Nov 20 07:05:24 EST 2020
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#30 by N. J. A. Sloane at Sun Oct 25 15:19:32 EDT 2015
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#29 by N. J. A. Sloane at Sun Oct 25 15:19:30 EDT 2015
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| COMMENTS
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Among the deficient numbers, are the asymptotic densities of odd and even deficient numbers equal to 1/2 or not? (Do we only have a negligible bias in favor of the odd numbers?) - Daniel Forgues, Oct 24 2015
Asymptotically, among the deficient numbers, are there more evens than odds? - Daniel Forgues, Oct 24 2015
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| STATUS
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proposed
editing
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#28 by Daniel Forgues at Sun Oct 25 14:32:35 EDT 2015
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#27 by Daniel Forgues at Sun Oct 25 14:32:05 EDT 2015
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| COMMENTS
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Among the deficient numbers, are the asymptotic densities of odd and even deficient numbers equal to 1/2 or not? (Or doDo we only have a negligible bias in favor of the odd numbers?) - Daniel Forgues, Oct 24 2015
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#26 by Daniel Forgues at Sun Oct 25 14:30:20 EDT 2015
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| COMMENTS
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Among the deficient numbers, are the asymptotic densities of odd and even deficient numbers equal to 1/2 or not? - _? (Or do we only have a negligible bias in favor of the odd numbers?) - _Daniel Forgues_, Oct 24 2015
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