n=x^2+17, n and n+2 are prime.

Terms

a(0) =17a(1) =26261a(2) =90017a(3) =138401a(4) =176417a(5) =562517a(6) =788561a(7) =2022101a(8) =2683061a(9) =4743701a(10) =5336117a(11) =9622421a(12) =11614481a(13) =13927841a(14) =21344417a(15) =21734261a(16) =22184117a(17) =38192417a(18) =59629301a(19) =64448801a(20) =68558417a(21) =79923617a(22) =82301201a(23) =89302517a(24) =90098081a(25) =91814741a(26) =95648417