Williams primes of the form 6•5ⁿ+1

2020-06-13: Found n =&#160;6546983 , Ryan Propper
2020-06-04: Found n =&#160;1403337 , Ryan Propper
2020-06-04: Found n =&#160;1392287 , Ryan Propper
2020-06-03: Found n =&#160;862923 , Ryan Propper
2019-11-03: Reserved by Ryan Propper
2015-01-16: Checked to n = 300000 , <a href="/z/index.php?title=Robert_Price&amp;action=edit&amp;redlink=1" class="new" title="Robert Price (page does not exist)">Robert Price
1998-11-02: Found n =&#160;8462 , Wilfrid Keller

Reserved! This sequence is currently reserved by: Ryan Propper

Current data

Base :	5
Count :	21
Max n :	1,300,000
Date :	2020-06-04
Reserved :	Ryan PropperRyan Propper/Reserved

1, 2, 3, 23, 27, 33, 63, 158, 278, 290, 351, 471, 797, 8462, 28793, 266030, 439191, 862923, 1392287, 1403337, 6546983

Remarks :

The sequence A143279 in OEIS