[seqfan] 4xy + 6x - 1

юрий герасимов 2stepan at rambler.ru
Thu Feb 19 15:55:11 CET 2015


Dear SeqFans, 

Primes not of the form 4xy + 6x - 1: 2, 3, 7, 31, ...

What in the next one?

Thanks. JSG


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