Smallest prime in kx^3+x+5 is prime.

Terms

a(0) =7a(1) =7a(2) =23a(3) =31a(4) =11a(5) =1307a(6) =13a(7) =71a(8) =79a(9) =393079a(10) =17a(11) =103a(12) =19a(13) =81671a(14) =127a(15) =1033a(16) =23a(17) =151a(18) =521a(19) =167a(20) =4547a(21) =128327a(22) =29a(23) =199a(24) =31a(25) =71363a(26) =223a(27) =1801a(28) =239a(29) =6491