Primes congruent to 5 (mod 12). Also primes p such that x^4 = 9 has no solution mod p.
5, 17, 29, 41, 53, 89, 101, 113, 137, 149, 173, 197, 233, 257, 269, 281, 293, 317, 353
1 seqfan posts
Sun Aug 15 18:00:58 CEST 2010 [seqfan] Re: possible duplicates