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Revision History for A000978

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Showing entries 1-10 | older changes

A000978

Wagstaff numbers: numbers k such that (2^k + 1)/3 is prime.
(history; published version)

#131 by Michael De Vlieger at Fri Aug 23 12:16:59 EDT 2024

STATUS

reviewed

approved

#130 by Michel Marcus at Fri Aug 23 12:16:37 EDT 2024

STATUS

proposed

reviewed

#129 by Michael De Vlieger at Fri Aug 23 12:02:10 EDT 2024

STATUS

editing

proposed

#128 by Michael De Vlieger at Fri Aug 23 12:02:09 EDT 2024

LINKS

Djurre G. Sikkema, <a href="https://fse.studenttheses.ub.rug.nl/33908">Probable primality testing for Wagstaff prime</a>, Bachelor's project mathematics, Univ. Groningen (Netherlands 2024). See p. 32.

STATUS

approved

editing

#127 by Charles R Greathouse IV at Mon Apr 03 10:36:09 EDT 2023

LINKS

C. Caldwell's The Top Twenty, <a href="httphttps://primes.utmt5k.eduorg/top20/page.php?id=67">Wagstaff</a>.

C. Caldwell, <a href="httphttps://primes.utmt5k.eduorg/mersenne/NewMersenneConjecture.html">New Mersenne Conjecture</a>

Discussion

Mon Apr 03

10:36

OEIS Server: https://oeis.org/edit/global/2966

#126 by Harvey P. Dale at Mon Jun 13 15:01:38 EDT 2022

STATUS

editing

approved

#125 by Harvey P. Dale at Mon Jun 13 15:01:34 EDT 2022

MATHEMATICA

Select[Prime[Range[2, 500]], PrimeQ[(2^#+1)/3]&] (* Harvey P. Dale, Jun 13 2022 *)

STATUS

approved

editing

#124 by N. J. A. Sloane at Fri Jan 14 07:35:17 EST 2022

STATUS

proposed

approved

#123 by Hugo Pfoertner at Sun Jan 02 16:47:00 EST 2022

STATUS

editing

proposed

#122 by Hugo Pfoertner at Sun Jan 02 16:41:14 EST 2022

LINKS

Tony Reix, <a href="http://www.worldofnumbers.com/YPFM10184.htm">Yahoo Primeform Group Message 10184 dd. Feb 20, 2010</a>, reconstruction in html.

Patrick De Geest, <a href="http://www.worldofnumbers.com/YPFM10184.htm">Yahoo Primeform Group Message 10184 dd. Feb 20, 2010</a>, reconstruction in html.

STATUS

proposed

editing

Discussion

Sun Jan 02

16:47

Hugo Pfoertner: We have already reconstructed many of the Yahoo group discussions, always citing the original authors. I see no reason to act any differently here.