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Difference between revisions of "Cullen prime 2"

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(double-check to n=100K)
(check to n=26M, exact date unknown)
 
Line 1: Line 1:
 
{{Cullen prime
 
{{Cullen prime
 
|CuBase=2
 
|CuBase=2
−
|CuMaxn=25000000
+
|CuMaxn=26000000
−
|CuDate=2024-10-25
+
|CuDate=2025
 
|CuReserved=PrimeGrid Cullen Prime Search
 
|CuReserved=PrimeGrid Cullen Prime Search
 
|CuNlist=
 
|CuNlist=

Latest revision as of 02:09, 5 March 2025

Reserved! This sequence is currently reserved by: PrimeGrid Cullen Prime Search

Current data

ASCII format : n*2^n+1
Base : 2
Count : 16
Max n : 26,000,000
Date : 2025
Reserved : PrimeGrid Cullen Prime SearchPrimeGrid Cullen Prime Search/Reserved
1, 141, 4713, 5795, 6611, 18496[1], 32292[2], 32469, 59656[3], 90825, 262419, 361275, 481899, 1354828[4], 6328548[5], 6679881
Remarks :
The sequence A005849 in OEIS
Current status at PrimeGrid

Notes

  1. Jump up ↑ Proth 289•218502+1, Generalized Fermat number
  2. Jump up ↑ Proth 8073•232294+1
  3. Jump up ↑ Proth 7457•259659+1
  4. Jump up ↑ Proth 338707•21354830+1
  5. Jump up ↑ Proth 1582137•26328550+1

History

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