Primes with primitive root 56.

Terms

a(0) =3a(1) =17a(2) =23a(3) =29a(4) =37a(5) =41a(6) =53a(7) =59a(8) =71a(9) =83a(10) =89a(11) =97a(12) =109a(13) =127a(14) =131a(15) =139a(16) =149a(17) =151a(18) =191a(19) =197a(20) =227a(21) =239a(22) =241a(23) =251a(24) =257a(25) =263a(26) =277a(27) =283a(28) =307a(29) =317