Primes p such that x^3 = 13 has no solution mod p.

Terms

a(0) =19a(1) =31a(2) =37a(3) =43a(4) =61a(5) =67a(6) =73a(7) =79a(8) =97a(9) =109a(10) =127a(11) =139a(12) =151a(13) =157a(14) =181a(15) =199a(16) =241a(17) =283a(18) =307a(19) =313a(20) =331a(21) =337a(22) =349a(23) =367a(24) =379a(25) =397a(26) =433a(27) =439a(28) =457a(29) =463