[seqfan] Re: (3^n+1)/2 is prime, A171381

N. J. A. Sloane njas at research.att.com
Mon Jun 14 18:25:22 CEST 2010


I'm trying to keep
all three entries - A093625, A138083, A171381 up to date
(tricky because there has been a lot of email
about them)

the next term is >= 2^21 (Don Reble from 2004)

Neil





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