Primes p such that 15 is not a square mod p.

Terms

a(0) =13a(1) =19a(2) =23a(3) =29a(4) =31a(5) =37a(6) =41a(7) =47a(8) =73a(9) =79a(10) =83a(11) =89a(12) =97a(13) =101a(14) =107a(15) =139a(16) =149a(17) =151a(18) =157a(19) =167a(20) =193a(21) =199a(22) =211a(23) =227a(24) =263a(25) =269a(26) =271a(27) =277a(28) =281a(29) =313