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#15 by Michel Marcus at Mon Nov 09 10:14:25 EST 2015
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#14 by Joerg Arndt at Mon Nov 09 08:25:59 EST 2015
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#13 by Joerg Arndt at Mon Nov 09 08:25:29 EST 2015
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#12 by Joerg Arndt at Mon Nov 09 08:24:57 EST 2015
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| REFERENCES
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D.. S.. Dummit and R.. M.. Foote, Abstract Algebra, Wiley, 3rd Edition, 2003, page 135.
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| STATUS
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proposed
editing
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#11 by Michel Marcus at Sat Nov 07 16:25:08 EST 2015
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#10 by Michel Marcus at Sat Nov 07 16:24:52 EST 2015
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| COMMENTS
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Semiprimes pq with p<q and gcd(p,q-1)=1. - . - _T. D. Noe, _, Oct 08 2008
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| CROSSREFS
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Cf. A050384, A003277. [From _. [_Franklin T. Adams-Watters_, Feb 27 2009]
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| STATUS
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proposed
editing
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#9 by Geoffrey Critzer at Sat Nov 07 16:11:34 EST 2015
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#8 by Geoffrey Critzer at Sat Nov 07 16:11:12 EST 2015
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| REFERENCES
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D.S.Dummit and R.M.Foote, Abstract Algebra, Wiley, 3rd Edition, 2003, page 135.
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| MATHEMATICA
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Select[Select[Range[1000], FactorInteger[#][[All, 2]] == {1, 1} &], !
Divisible[FactorInteger[#][[2, 1]] - 1, FactorInteger[#][[1, 1]]] &] (* Geoffrey Critzer, Nov 07 2015 *)
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| STATUS
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approved
editing
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#7 by Russ Cox at Fri Mar 30 17:39:39 EDT 2012
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| EXTENSIONS
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More terms from _R. J. Mathar (mathar(AT)strw.leidenuniv.nl), _, Oct 04 2008
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Discussion
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| Fri Mar 30
| 17:39
| OEIS Server: https://oeis.org/edit/global/190
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#6 by Russ Cox at Fri Mar 30 17:35:23 EDT 2012
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| CROSSREFS
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Cf. A050384, A003277. [From _Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), _, Feb 27 2009]
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Discussion
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| Fri Mar 30
| 17:35
| OEIS Server: https://oeis.org/edit/global/165
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