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Difference between revisions of "Proth prime 3 4"
(add back prime n=11279466 erroneously removed by top-5000 and correct dates) |
(add near Cullen primes) |
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Line 11: | Line 11: | ||
1;T:T | 1;T:T | ||
2 | 2 | ||
− | 3;T:T | + | 3;T:T;C:{{NCu|+|3|3}} |
6 | 6 | ||
− | 14 | + | 14;C:{{NCu|-|3|13}} |
15;T:T | 15;T:T | ||
39 | 39 |
Latest revision as of 20:56, 27 September 2024
Reserved! This sequence is currently reserved by: Ryan Propper |
Current data
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Remarks : |
The sequence A005537 in OEIS For all even n-values 4•3n+1 is a Generalized Fermat number. See also Williams 4•3n+1 |
Notes
History
- 2024-09-10: Found n = 11279466, Ryan Propper
- 2024-09-10: Found n = 9214845, Ryan Propper
- 2024-09-09: Found n = 7578378, Ryan Propper
- 2024-09-09: Found n = 6402015, Ryan Propper
- 2024-09-09: Reserved by Ryan Propper for n = 5000000 - 15000000
- 2024-09-09: Checked n = 1000000 - 5000000, Ryan Propper, double-check n = 1000000 - 1500000
- 2024-09-09: Found n = 4020126, Ryan Propper
- 2024-09-06: Reserved by Ryan Propper for n = 1000000 - 5000000
- 2020-05-08: Found n = 2016951, Ryan Propper
- 2020-05-07: ?, Matthias Baur, released
- 2020-05-07: Found n = 2143374, Ryan Propper
- 2020-05-07: Found n = 1936890, Ryan Propper
- 2020-01-16: Checked n = 1200000 - 1500000, Matthias Baur
- 2020-01-16: Found n = 1499606, Matthias Baur
- 2019-12-07: Checked n = 1000000 - 1200000, Matthias Baur
- 2019-11-28: Found n = 1154598, Matthias Baur
- 2019-07-28: Checked n = 990000 - 1000000, Matthias Baur
- 2019-07-23: Checked n = 800000 - 990000, Matthias Baur
- 2019-07-12: Found n = 887535, Matthias Baur
- 2019-07-10: Found n = 980925, Matthias Baur
- 2019-06-04: Checked n = 600000 - 800000, Matthias Baur
- 2018-12-06: Checked n = 400000 - 600000, Matthias Baur
- 2018-12-06: Found n = 537918, Matthias Baur
- 2018-11-07: Checked n = 1 - 400000, Matthias Baur, double-check n = 1 - 200000
- 2018-11-07: Found n = 328689, Matthias Baur
- 2013-11-23: Checked n = 1 - 200000, Robert Price, double-check of unknown range
- 2013-11-23: Found n = 72698, Robert Price
- 2005-11-29: Found n = 233583, Boris Iskra
- 1996-12-01: Found n = 19785, Chris Caldwell
- 1996-12-01: Found n = 9602, Chris Caldwell
- 1996-03-15: Checked n = 1 - 2500?, Chris Caldwell
- 1992: Found n = 3522, Chris Caldwell
- 1992: Found n = 3306, Chris Caldwell