Primes p such that x^19 = 2 has no solution mod p.

Terms

a(0) =191a(1) =229a(2) =419a(3) =457a(4) =571a(5) =647a(6) =761a(7) =1217a(8) =1483a(9) =1559a(10) =1597a(11) =1787a(12) =1901a(13) =2053a(14) =2129a(15) =2243a(16) =2281a(17) =2357a(18) =2699a(19) =2851a(20) =2927a(21) =3041a(22) =3079a(23) =3307a(24) =3877a(25) =4219a(26) =4409a(27) =4447a(28) =4523a(29) =4561