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Difference between revisions of "Proth prime 7 4"
(hist+GPCount) |
(n=1640811 & reservation) |
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(9 intermediate revisions by 3 users not shown) | |||
Line 1: | Line 1: | ||
− | {{ | + | {{Proth prime |
− | | | + | |Pk=4 |
− | | | + | |Pb=7 |
− | | | + | |PCount=26 |
− | | | + | |PNash=3135 |
− | | | + | |PMaxn=300000 |
− | | | + | |PDate=2024-09-18 |
− | | | + | |PReserved=Ryan Propper |
− | | | + | |PMultiRes= |
+ | |PNlist= | ||
1 | 1 | ||
2 | 2 | ||
Line 25: | Line 26: | ||
6442 | 6442 | ||
16474;13415 | 16474;13415 | ||
+ | 23642 | ||
+ | 40894 | ||
94133;69042 | 94133;69042 | ||
+ | 101335 | ||
+ | 135737 | ||
+ | 224437 | ||
254621;91232 | 254621;91232 | ||
266782;91244 | 266782;91244 | ||
− | | | + | 1640811;138542 |
− | | | + | |PRemarks={{OEIS|l|A204323}}<br>For all even {{Vn}}-values {{Kbn|+|4|7|n}} is a [[Generalized Fermat number]]. |
+ | |PSieve= | ||
}} | }} | ||
==History== | ==History== | ||
− | {{HistR|2020-07-21|Paul Vanderveen}} | + | {{HistF|2020-09-18|1640811|Ryan Propper}} |
+ | {{HistR|2020-09-17|Ryan Propper|1053969}} to {{Rn|3000000|3000000}} | ||
+ | {{HistC|2024-09-16|1-300000|Gary Barnes|1053783}}, double-check {{Rn|1|41500}}, released | ||
+ | {{HistC|2020-07-21|1-41500|Paul Vanderveen}} | ||
{{HistF|2009-12-24|266782|Brian Lody}} | {{HistF|2009-12-24|266782|Brian Lody}} | ||
{{HistF|2009-12-22|254621|Brian Lody}} | {{HistF|2009-12-22|254621|Brian Lody}} | ||
{{HistF|2004-03-01|94133|Peter Benson}} | {{HistF|2004-03-01|94133|Peter Benson}} | ||
{{HistF|1998-11-18|16474|David W. Linton}} | {{HistF|1998-11-18|16474|David W. Linton}} |
Latest revision as of 01:37, 18 September 2024
Reserved! This sequence is currently reserved by: Ryan Propper |
Current data
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Remarks : |
sequence A204323 in OEIS For all even n-values 4•7n+1 is a Generalized Fermat number. |
History
- 2020-09-18: Found n = 1640811, Ryan Propper
- 2020-09-17: Reserved by Ryan Propper to n = 3000000
- 2024-09-16: Checked n = 1 - 300000, Gary Barnes, double-check n = 1 - 41500, released
- 2020-07-21: Checked n = 1 - 41500, Paul Vanderveen
- 2009-12-24: Found n = 266782, Brian Lody
- 2009-12-22: Found n = 254621, Brian Lody
- 2004-03-01: Found n = 94133, Peter Benson
- 1998-11-18: Found n = 16474, David W. Linton