Primes p such that 2 is a square mod p; or, primes congruent to {1, 2, 7} mod 8.

Terms

a(0) =2a(1) =7a(2) =17a(3) =23a(4) =31a(5) =41a(6) =47a(7) =71a(8) =73a(9) =79a(10) =89a(11) =97a(12) =103a(13) =113a(14) =127a(15) =137a(16) =151a(17) =167a(18) =191a(19) =193a(20) =199a(21) =223a(22) =233a(23) =239a(24) =241a(25) =257a(26) =263a(27) =271a(28) =281a(29) =311