Revision History for A128068
(Underlined text is an addition;
strikethrough text is a deletion.)
Showing entries 1-10
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#11 by Jon E. Schoenfield at Thu Nov 01 21:23:20 EDT 2018
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#10 by Jon E. Schoenfield at Thu Nov 01 21:23:18 EDT 2018
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| NAME
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Numbers nk such that (3^nk + 8^nk)/11 is prime.
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| COMMENTS
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a(9) > 10^5. - . - _Robert Price, _, Mar 06 2013
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| STATUS
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approved
editing
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#9 by Charles R Greathouse IV at Fri Feb 17 14:57:31 EST 2017
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#8 by Charles R Greathouse IV at Fri Feb 17 14:57:06 EST 2017
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#7 by Charles R Greathouse IV at Wed Mar 06 21:32:38 EST 2013
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#6 by Robert Price at Wed Mar 06 21:13:14 EST 2013
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#5 by Robert Price at Wed Mar 06 21:12:52 EST 2013
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| DATA
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5, 163, 191, 229, 271, 733, 21059, 25237
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| COMMENTS
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a(9) > 10^5. - Robert Price, Mar 06 2013
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| EXTENSIONS
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a(7)-a(8) from Robert Price, Mar 06 2013
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| STATUS
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approved
editing
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#4 by Russ Cox at Sat Mar 31 13:20:35 EDT 2012
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| AUTHOR
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_Alexander Adamchuk (alex(AT)kolmogorov.com), _, Feb 14 2007
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| EXTENSIONS
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a(6) from _Alexander Adamchuk (alex(AT)kolmogorov.com), _, Feb 14 2007
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Discussion
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| Sat Mar 31
| 13:20
| OEIS Server: https://oeis.org/edit/global/879
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#3 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010
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| CROSSREFS
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Cf. A007658 = numbers n such that (3^n + 1)/4 is prime. Cf. A057469 = numbers n such that (3^n + 2^n)/5 is prime. Cf. A122853 = numbers n such that (3^n + 5^n)/8 is prime. Cf. A128066, A128067, A128069, A128070, A128071, A128072, A128073, A128074, A128075. Cf. A059801 = numbers n such that 4^n - 3^n is prime. Cf. A121977A121877 = numbers n such that (5^n - 3^n)/2 is a prime. Cf. A128024, A128025, A128026, A128027, A128028, A128029, A128030, A128031, A128032.
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| KEYWORD
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hard,more,nonn,new
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#2 by N. J. A. Sloane at Sat Nov 10 03:00:00 EST 2007
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| COMMENTS
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All terms are primeprimes.
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| CROSSREFS
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Cf. A007658 = Numbersnumbers n such that (3^n + 1)/4 is prime. Cf. A057469 = Numbersnumbers n such that (3^n + 2^n)/5 is prime. Cf. A122853 = Numbersnumbers n such that (3^n + 5^n)/8 is prime. Cf. A128066, A128067, A128069, A128070, A128071, A128072, A128073, A128074, A128075. Cf. A059801 = Numbersnumbers n such that 4^n - 3^n is prime. Cf. A121977 = Numbersnumbers n such that (5^n - 3^n)/2 is a prime. Cf. A128024, A128025, A128026, A128027, A128028, A128029, A128030, A128031, A128032.
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| KEYWORD
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hard,more,nonn,new
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