Primes of the form p^2 + 4, where p is prime.

Terms

a(0) =13a(1) =29a(2) =53a(3) =173a(4) =293a(5) =1373a(6) =2213a(7) =4493a(8) =5333a(9) =9413a(10) =10613a(11) =18773a(12) =26573a(13) =27893a(14) =37253a(15) =54293a(16) =76733a(17) =85853a(18) =94253a(19) =97973a(20) =100493a(21) =120413a(22) =139133a(23) =214373a(24) =237173a(25) =253013a(26) =299213a(27) =332933a(28) =351653a(29) =368453