Primes with both 10 and -10 as primitive root.

Terms

a(0) =17a(1) =29a(2) =61a(3) =97a(4) =109a(5) =113a(6) =149a(7) =181a(8) =193a(9) =229a(10) =233a(11) =257a(12) =269a(13) =313a(14) =337a(15) =389a(16) =433a(17) =461a(18) =509a(19) =541a(20) =577a(21) =593a(22) =701a(23) =709a(24) =821a(25) =857a(26) =937a(27) =941a(28) =953a(29) =977