Williams primes of the form 11•12n-1

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Current data

Base : 12
Count : 16
Max n : 200,000
Date : 2015-03-20
1, 2, 21, 25, 33, 54, 78, 235, 1566, 2273, 2310, 4121, 7775, 42249, 105974, 138961
Remarks :
The sequence A079907 in OEIS

History