Primes of form k^2 - 3.

Terms

a(0) =13a(1) =61a(2) =97a(3) =193a(4) =397a(5) =673a(6) =1021a(7) =1153a(8) =1597a(9) =1933a(10) =2113a(11) =3361a(12) =4093a(13) =4621a(14) =6397a(15) =7393a(16) =7741a(17) =8461a(18) =9601a(19) =12097a(20) =12541a(21) =13921a(22) =15373a(23) =16381a(24) =18493a(25) =19597a(26) =20161a(27) =21313a(28) =26893a(29) =29581