Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3). 
Navigation
Topics  Register • News • History • How to • Sequences statistics • Template prototypes 
Proth primes of the form 5•6^{n}+1
Reserved! This sequence is currently reserved by: (Alex_soldier) 
Current data


Remarks : 
The sequence A247260 in OEIS See also Williams 5•6^{n}+1 
History
 20230731: Checked to n = 800000, (Alex_soldier), results included
 20230602: Checked to n = 700000, (Alex_soldier), results included
 20230525: Checked to n = 600000, (Alex_soldier), results included
 20230426: Checked to n = 500000, (Alex_soldier), results included
 20230327: Found n = 413426, (Alex_soldier)
 20230320: Found n = 880336, (Alex_soldier)
 20230316: Checked to n = 400000, (Alex_soldier), results included
 20230311: Checked to n = 300000, (Alex_soldier), results included
 20230302: Found n = 235508, (Alex_soldier)
 20230301: Found n = 231128, (Alex_soldier)
 20230222: Checked to n = 200000, (Alex_soldier), double check, results included
 20230210: Reserved by (Alex_soldier) for 200000 ≤ n ≤ 1000000
 20140910: Checked to n = 200000, Robert Price