Primes of the form k^2 + 3.

Terms

a(0) =3a(1) =7a(2) =19a(3) =67a(4) =103a(5) =199a(6) =487a(7) =787a(8) =1447a(9) =2503a(10) =2707a(11) =3847a(12) =4099a(13) =4903a(14) =5479a(15) =5779a(16) =8467a(17) =8839a(18) =11239a(19) =12547a(20) =14887a(21) =16903a(22) =17959a(23) =19603a(24) =21319a(25) =23719a(26) =24967a(27) =25603a(28) =29587a(29) =31687