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Generalized Woodall primes of the form n•31n-1
Current data
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History
- 2024-10-25: Checked n = 1 - 100000, Gary Barnes, double-check, released
- 2023-07-03: Checked n = 4000 - 50000?, (puadz), double-check
- 2023-06-17: Reserved by (puadz), double-check
- 2018-02-15: Checked n = 200000 - 400000, Steven Harvey
- 2017-12-18: Reserved by Steven Harvey to n = 400000
- 2014-03-13: Checked to n = 25000, Steven Harvey, double-check
- 2012-10-10: Checked to n = 25000, Thomas Ritschel
- 2011-06-27: Checked n = 125000 - 200000, Ricky L. Hubbard
- 2011-05-31: Reserved by Ricky L. Hubbard for n = 125000 - 200000
- 2010-11-01: Checked n = 30 - 4000, Steven Harvey, double-check
- 2009-11-17: Checked n = 50000? - 125000, Steven Harvey
- 2009-10-04: Reserved by Steven Harvey to n = 125000
- 2005-01-03: Checked n = 5000 - 10000, Mark Rodenkirch
- 2004-12-21: Reserved by Mark Rodenkirch to n = 10000
- 2004-12-21: Checked n = 30 - 5000, Mark Rodenkirch
- 2004-12-15: Reserved by Mark Rodenkirch to n = 6000
- 2004-12-03: Reserved by Mark Rodenkirch to n = 5000
- 2000-02-04: Found n = 2454, Joe DeMaio
