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#63 by Michael De Vlieger at Thu Feb 22 13:34:13 EST 2024
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| LINKS
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Vladimir Pletser, <a href="https://doi.org/10.20944/preprints202402.0545.v1">Global Generalized Mersenne Numbers: Definition, Decomposition, and Generalized Theorems</a>, Preprints.org, 2024. See p. 20.
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| KEYWORD
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nonn,changed
nonn
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| STATUS
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proposed
approved
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#62 by Michael De Vlieger at Thu Feb 22 11:10:04 EST 2024
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#61 by Michael De Vlieger at Thu Feb 22 11:10:02 EST 2024
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| LINKS
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Vladimir Pletser, <a href="https://doi.org/10.20944/preprints202402.0545.v1">Global Generalized Mersenne Numbers: Definition, Decomposition, and Generalized Theorems</a>, Preprints.org, 2024. See p. 20.
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| STATUS
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approved
editing
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#60 by Michael De Vlieger at Fri Jan 12 10:05:28 EST 2024
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#59 by Kevin Ryde at Thu Jan 11 23:23:10 EST 2024
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#58 by Rémi Guillaume at Thu Jan 11 11:27:05 EST 2024
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#57 by Rémi Guillaume at Thu Jan 11 11:19:34 EST 2024
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| EXAMPLE
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1 + 3*10*9 = 271 = A002407(6) is the 6th prime of this form, so a(6) = 10. (End).
(End)
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#56 by Joerg Arndt at Thu Jan 11 00:20:07 EST 2024
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#55 by Rémi Guillaume at Wed Jan 10 16:02:17 EST 2024
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#54 by Rémi Guillaume at Wed Jan 10 15:41:38 EST 2024
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| FORMULA
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a(n) = ceiling(sqrt(A002407(n)/3)). See proof in A002407 links.)).
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| EXAMPLE
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From Rémi Guillaume, Dec 07 2023: (Start)
1 + 3*10*9 = 271 = A002407(6) is the 6th prime of this form, so a(6) = 10.. (End)
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| CROSSREFS
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Cf. A002407, (resulting primes), A111251, (twin), A121259. (sister).
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| STATUS
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approved
editing
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