Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3). |
Navigation
Topics | Help • Register • News • History • How to • Sequences statistics • Template prototypes |
Generalized Woodall primes of the form n•20n-1
Current data
|
|
Remarks : |
The sequence A299383 in OEIS |
Notes
History
- 2023-08-10: none, Ryan Propper, released
- 2023-04-29: Checked n = 1000000 - 1600000, Ryan Propper
- 2023-04-19: Reserved by Ryan Propper to n = 1600000
- 2023-04-10: Checked n = 400000 - 1000000, Ryan Propper
- 2023-04-09: Found n = 663703, Ryan Propper
- 2023-04-01: Reserved by Ryan Propper to n = 1000000
- 2016-12-14: Checked n = 200000 - 400000, Steven Harvey
- 2016-02-08: Found n = 210129, Steven Harvey
- 2016-02-08: 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, Steven Harvey
- 2011-03-16: Reserved by Steven Harvey to n = 200000
- 2010-11-01: Checked n = 19 - 4000, Steven Harvey, double-check
- 2009-09-15: Checked n = 90000 - 125000, Steven Harvey
- 2009-08-30: Reserved by Steven Harvey for n = 90000 - 125000
- 2009-02-04: Checked to n = 90000, Dirk Augustin
- 2005-02-26: Reserved by Dirk Augustin to n = 100000
- 2005-01-03: Checked n = 5000 - 10000, Mark Rodenkirch
- 2004-12-21: Reserved by Mark Rodenkirch to n = 10000
- 2004-12-21: Checked n = 19 - 5000, Mark Rodenkirch
- 2004-12-15: Reserved by Mark Rodenkirch to n = 6000
- 2004-12-03: Reserved by Mark Rodenkirch to n = 5000
- 2002-03-11: Found n = 50312, Dirk Augustin
- 2001-12-28: Found n = 42968, Dirk Augustin
- 2001-11-28: Found n = 35340, Dirk Augustin
- 2000-02-25: Found n = 8774, Dirk Augustin
- 2000-02-04: Found n = 2065, Joe DeMaio