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#17 by T. D. Noe at Wed Oct 02 13:17:14 EDT 2013
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#16 by T. D. Noe at Wed Oct 02 13:17:10 EDT 2013
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LessersSmaller of Fermi-Dirac twin primes (A229064) which are not the lesserssmaller of twin primes (A001359).
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| COMMENTS
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The sequence conjecturally infinite. All squares of the sequence are 9,, 81,, 6561,... and have the form 3^(2^k), k>=1. However, we conjecture that there is only a finite number of them, or, the same, there is only a finite number of primes of the form 3^(2^k) + 2.
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| EXTENSIONS
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More terms from _Peter J. C. Moses__, Sep 25 2013
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proposed
editing
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#15 by Vladimir Shevelev at Sun Sep 29 07:41:02 EDT 2013
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#14 by Vladimir Shevelev at Sun Sep 29 07:40:20 EDT 2013
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Lessers of Fermi-Dirac twin primes (A229064) which are not lessers of twin primes (A001359)).
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proposed
editing
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Discussion
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| Sun Sep 29
| 07:40
| Vladimir Shevelev: OK
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#13 by Vladimir Shevelev at Fri Sep 27 05:15:25 EDT 2013
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Discussion
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| Sat Sep 28
| 21:21
| Wesley Ivan Hurt: Name needs a period.
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#12 by Vladimir Shevelev at Fri Sep 27 05:15:18 EDT 2013
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The sequence conjecturally infinite. All squares of the sequence are 9,81,6561,... and have the form 3^(2^k), k>=1. However, we conjecture that there is only a finite number of them, or, the same, we conjecture that there is only a finite number of primes of the form 3^(2^k) + 2.
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proposed
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#11 by Vladimir Shevelev at Fri Sep 27 05:13:47 EDT 2013
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#10 by Vladimir Shevelev at Fri Sep 27 05:13:39 EDT 2013
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| COMMENTS
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The sequence conjecturally infinite. All squares of the sequence are 9,81,6561,... and have the form 3^(2^k), k>=1. However, we conjecture that there is only a finite number of them, or, the same, we conjecture that there is only a finite number of primes of the form 3^(2^k) + 2.
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proposed
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#9 by Michel Marcus at Wed Sep 25 06:21:36 EDT 2013
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#8 by Michel Marcus at Wed Sep 25 06:21:30 EDT 2013
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| COMMENTS
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The sequence conjecturally infinite. All squares of the sequence are 9,81,6561,...,... and have the form 3^(2^k), k>=1. However, we conjecture that there is only a finite number of them.
and have the form 3^(2^k), k>=1. However, we conjecture that there is only a finite number of them.
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proposed
editing
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