Primes p such that 13 is not a square mod p.

Terms

a(0) =2a(1) =5a(2) =7a(3) =11a(4) =19a(5) =31a(6) =37a(7) =41a(8) =47a(9) =59a(10) =67a(11) =71a(12) =73a(13) =83a(14) =89a(15) =97a(16) =109a(17) =137a(18) =149a(19) =151a(20) =163a(21) =167a(22) =193a(23) =197a(24) =223a(25) =227a(26) =229a(27) =239a(28) =241a(29) =271