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Difference between revisions of "Woodall prime 4"
(links at Woodall page) |
(double-check to n=100K) |
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|WoBase=4 | |WoBase=4 | ||
|WoMaxn=2000000 | |WoMaxn=2000000 | ||
| − | |WoDate= | + | |WoDate=2024-10-25 |
|WoReserved= | |WoReserved= | ||
|WoNlist= | |WoNlist= | ||
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}} | }} | ||
==History== | ==History== | ||
| + | {{HistC|2024-10-25|1-100000|Gary Barnes|1058845}}, double-check, released | ||
{{HistC|2015-05-01|1000000-2000000|Serge Batalov}} | {{HistC|2015-05-01|1000000-2000000|Serge Batalov}} | ||
{{HistF|2015-05-01|1993191|Serge Batalov}} | {{HistF|2015-05-01|1993191|Serge Batalov}} | ||
Revision as of 05:05, 29 October 2024
Current data
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Remarks : |
The sequence A086661 in OEIS Sequence is the same as Near Woodall (n+1)*2^n-1 for odd n. |
Notes
- ↑ Twin n=1, Mersenne 22-1, Near Woodall 2•21-1, Near Woodall 1•22-1
- ↑ Mersenne 25-1, Near Woodall 4•23-1
- ↑ Twin n=3, Riesel 3•26-1, Near Woodall 6•25-1
- ↑ Riesel 5•210-1, Near Woodall 10•29-1
- ↑ Mersenne 219-1, Near Woodall 16•215-1
- ↑ Riesel 7•229-1, Near Woodall 28•227-1
- ↑ Riesel 23•246-1, Near Woodall 46•245-1
- ↑ Riesel 63•2126-1, Near Woodall 126•2125-1
- ↑ Riesel 107•2214-1, Near Woodall 214•2213-1
- ↑ Riesel 33•2266-1, Near Woodall 264•2263-1
- ↑ Riesel 107•2858-1, Near Woodall 856•2855-1
- ↑ Riesel 265•21061-1, Near Woodall 1060•21059-1
- ↑ Riesel 1137•22274-1, Near Woodall 2274•22273-1
- ↑ Riesel 1973•23946-1, Near Woodall 3946•23945-1
- ↑ Riesel 125•24004-1, Near Woodall 4000•23999-1
- ↑ Riesel 883•214131-1, Near Woodall 14128•214127-1
- ↑ Riesel 20747•241494-1, Near Woodall 41494•241493-1
- ↑ Riesel 39787•2159149-1, Near Woodall 159148•2159147-1
- ↑ Riesel 56785•2227141-1, Near Woodall 227140•2227139-1
- ↑ Riesel 36739•2587827-1, Near Woodall 587824•2587823-1
- ↑ Riesel 1993191•23986382-1, Near Woodall 3986382•23986381-1
History
- 2024-10-25: Checked n = 1 - 100000, Gary Barnes, double-check, released
- 2015-05-01: Checked n = 1000000 - 2000000, Serge Batalov
- 2015-05-01: Found n = 1993191, Serge Batalov
- 2014-05-29: Checked n = 608749 - 1000000, Steven Harvey
- 2014-03-13: Checked to n = 25000, Steven Harvey, double-check
- 2012-10-10: Checked to n = 25000, Thomas Ritschel
- 2011-09-09: Checked n = 532007 - 608749, Steven Harvey
- 2009-10-09: Checked n = 282500 - 317900, Steven Harvey
- 2009-09-11: Found n = 293912, Steven Harvey
- 2009-01-03: Checked n = 520000 - 532007, Thomas Wolter
- 2007-11-29: Checked n = 425000 - 520000, Thomas Wolter
- 2005-11-27: Checked n = 250000 - 282500, 335200 - 425000, Thomas Wolter, released
- 2005-01-21: Reserved by Thomas Wolter to n = 400000
- 2005-01-03: Checked n = 5000 - 10000, Mark Rodenkirch
- 2004-12-28: Checked n = 317900 - 335200, Thomas Wolter
- 2004-12-21: Reserved by Mark Rodenkirch to n = 10000
- 2004-12-21: Checked n = 3 - 5000, Mark Rodenkirch
- 2004-12-15: Reserved by Mark Rodenkirch to n = 6000
- 2004-12-03: Reserved by Mark Rodenkirch to n = 5000
- 2004-09-20: Checked to n = 250000, Steven Harvey
- 2004-09-15: Reserved by Thomas Wolter to n = 300000
- 2004-03-30: Reserved by Steven Harvey to n = 250000
- 2000-07-28: Found n = 113570, Ray Ballinger
- 2000-05-19: Found n = 79574, Ray Ballinger
- 1998-07-03: Found n = 20747, Henri Lifchitz
- 1998-07-03: Found n = 7064, Henri Lifchitz
- 1998-07-03: Found n = 2000, Henri Lifchitz
- 1998-07-03: Found n = 1973, Henri Lifchitz
