Primes p==1 (mod 6) such that 3 and -3 are both cubes (one implies other) modulo p.

Terms

a(0) =61a(1) =67a(2) =73a(3) =103a(4) =151a(5) =193a(6) =271a(7) =307a(8) =367a(9) =439a(10) =499a(11) =523a(12) =547a(13) =577a(14) =613a(15) =619a(16) =643a(17) =661a(18) =727a(19) =757a(20) =787a(21) =853a(22) =919a(23) =967a(24) =991a(25) =997a(26) =1009a(27) =1021a(28) =1093a(29) =1117