Primes of the form 14 n^2-1.

Terms

a(0) =13a(1) =223a(2) =349a(3) =503a(4) =1399a(5) =1693a(6) =3583a(7) =6173a(8) =9463a(9) =16183a(10) =18143a(11) =27103a(12) =28349a(13) =33613a(14) =40823a(15) =42349a(16) =48733a(17) =59149a(18) =66653a(19) =70573a(20) =80863a(21) =89599a(22) =101149a(23) =115933a(24) =126349a(25) =129023a(26) =139999a(27) =151423a(28) =157303a(29) =169399