Primes p such that 42 is a square mod p.

Terms

a(0) =2a(1) =3a(2) =7a(3) =11a(4) =13a(5) =17a(6) =19a(7) =29a(8) =41a(9) =47a(10) =53a(11) =61a(12) =79a(13) =89a(14) =107a(15) =127a(16) =139a(17) =149a(18) =151a(19) =157a(20) =167a(21) =179a(22) =181a(23) =193a(24) =197a(25) =229a(26) =257a(27) =283a(28) =307a(29) =311