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Difference between revisions of "Proth prime 3 4"

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(add near Cullen primes)
(check to n=15M)
 
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|PCount=33
 
|PCount=33
 
|PNash=1703
 
|PNash=1703
−
|PMaxn=5000000
+
|PMaxn=15000000
−
|PDate=2024-09-10
+
|PDate=2025-02-12
 
|PReserved=Ryan Propper
 
|PReserved=Ryan Propper
 
|PMultiRes=
 
|PMultiRes=
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}}
 
}}
 
==History==
 
==History==
 +
{{HistC|2025-02-12|5000000-15000000|Ryan Propper|1069313}}
 
{{HistF|2024-09-10|11279466|Ryan Propper|1054301}}
 
{{HistF|2024-09-10|11279466|Ryan Propper|1054301}}
 
{{HistF|2024-09-10|9214845|Ryan Propper}}
 
{{HistF|2024-09-10|9214845|Ryan Propper}}

Latest revision as of 15:12, 12 February 2025

Reserved! This sequence is currently reserved by: Ryan Propper

Current data

k , b : 4 , 3
Count : 33
Nash : 1703
Max n : 15,000,000
Date : 2025-02-12
Reserved : Ryan PropperRyan Propper/Reserved
1[1], 2, 3[2], 6, 14[3], 15[4], 39, 201, 249, 885, 1005, 1254, 1635, 3306, 3522, 9602, 19785, 72698, 233583, 328689, 537918, 887535, 980925, 1154598, 1499606, 1936890, 2016951, 2143374, 4020126, 6402015, 7578378, 9214845, 11279466
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

  1. Jump up ↑ Twin n=1
  2. Jump up ↑ Twin n=3, Near Cullen 4•33+1
  3. Jump up ↑ Near Cullen 12•313+1
  4. Jump up ↑ Twin n=15

History

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