Primes of the form 7*x^2 - 5*y^2, where x and y are successive natural numbers.

Terms

a(0) =7a(1) =23a(2) =43a(3) =67a(4) =127a(5) =163a(6) =347a(7) =463a(8) =743a(9) =823a(10) =907a(11) =1087a(12) =1283a(13) =1607a(14) =1723a(15) =2503a(16) =2647a(17) =3767a(18) =3943a(19) =5923a(20) =6143a(21) =6367a(22) =6827a(23) =7547a(24) =8563a(25) =9643a(26) =9923a(27) =11083a(28) =11383a(29) =13267