Williams primes of the form 10•9n-1

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Current data

Base : 9
Count : 33
Max n : 100,000
Date : 2014-03-16
1, 2, 4, 5, 7, 10, 11, 13, 15, 19, 27, 29, 35, 42, 51, 70, 112, 164, 179, 180, 242, 454, 621, 2312, 3553, 6565, 14026, 16083, 18493, 43289, 44970, 73654, 79638
Remarks :
This list should be (re)use by 10•3n-1!
Halved even values of the sequence A005542 in OEIS

History