Primes of the form x^2 + 7*y^2, where x and y=x+1 are consecutive natural numbers.

Terms

a(0) =7a(1) =29a(2) =67a(3) =191a(4) =277a(5) =379a(6) =631a(7) =947a(8) =1129a(9) =1327a(10) =2017a(11) =2557a(12) =2851a(13) =4561a(14) =4951a(15) =5779a(16) =6217a(17) =8647a(18) =9181a(19) =12721a(20) =13367a(21) =14029a(22) =15401a(23) =16111a(24) =17579a(25) =20707a(26) =21529a(27) =22367a(28) =24091a(29) =24977