Smallest prime in kx^3+x+3 is prime.

Terms

a(0) =5a(1) =5a(2) =7a(3) =37a(4) =53a(5) =11a(6) =13a(7) =647a(8) =101a(9) =17a(10) =19a(11) =1031a(12) =149a(13) =23a(14) =173a(15) =181a(16) =197a(17) =29a(18) =31a(19) =229a(20) =30013a(21) =31013a(22) =37a(23) =277a(24) =293a(25) =41a(26) =43a(27) =40013a(28) =42013a(29) =47