Proth primes of the form 5•6n+1

Current data

k , b : 5 , 6 Count : 29 Nash : 3529 Max n : 1,000,000 Date : 2023-10-27

1, 2, 4, 17, 136, 147, 203, 590, 754, 964, 970, 1847, 2031, 2727, 2871, 5442, 7035, 7266, 11230, 23307, 27795, 34152, 42614, 127206, 133086, 231128, 235508, 413426, 880336

Remarks :

The sequence A247260 in OEIS See also Williams 5•6n+1

History

• 2023-10-27: Checked to n = 1000000, (Alex_soldier), results included, released
• 2023-10-03: Checked to n = 900000, (Alex_soldier), results included
• 2023-07-31: Checked to n = 800000, (Alex_soldier), results included
• 2023-06-02: Checked to n = 700000, (Alex_soldier), results included
• 2023-05-25: Checked to n = 600000, (Alex_soldier), results included
• 2023-04-26: Checked to n = 500000, (Alex_soldier), results included
• 2023-03-27: Found n = 413426, (Alex_soldier)
• 2023-03-20: Found n = 880336, (Alex_soldier)
• 2023-03-16: Checked to n = 400000, (Alex_soldier), results included
• 2023-03-11: Checked to n = 300000, (Alex_soldier), results included
• 2023-03-02: Found n = 235508, (Alex_soldier)
• 2023-03-01: Found n = 231128, (Alex_soldier)
• 2023-02-22: Checked to n = 200000, (Alex_soldier), double check, results included
• 2023-02-10: Reserved by (Alex_soldier) for 200000 ≤ n ≤ 1000000
• 2014-09-10: Checked to n = 200000, Robert Price