Primes of the form k^4 - 5.

Terms

a(0) =11a(1) =251a(2) =1291a(3) =4091a(4) =20731a(5) =104971a(6) =1048571a(7) =2085131a(8) =9834491a(9) =11316491a(10) =14776331a(11) =18974731a(12) =29986571a(13) =49787131a(14) =78074891a(15) =168896011a(16) =236421371a(17) =406586891a(18) =429981691a(19) =454371851a(20) =479785211a(21) =959512571a(22) =1146228731