Williams primes of the form 10•9n-1

Reserved! This sequence is currently reserved by: Riley Fisher

Current data

Base : 9 Count : 1 Max n : 250,000 Date : 2024-08-23 Reserved : Riley FisherRiley Fisher/Reserved

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, 218669

Remarks :

Do not add primes here. Only add primes 2*n to Riesel 10•3n-1. For additional history, see above Riesel sequence.

History

• 2024-08-23: Checked n = 100000 - 250000, Riley Fisher
• 2024-08-19: Found n = 218669, Riley Fisher
• 2024-04-20: Reserved by Riley Fisher
• 2014-03-16: Checked n = 1 - 100000, Robert Price, from Riesel 10•3ⁿ-1