Primes of the form 3x^3+x+1.

Terms

a(0) =5a(1) =197a(2) =3011a(3) =5197a(4) =10141a(5) =46901a(6) =59077a(7) =81031a(8) =499181a(9) =555637a(10) =648061a(11) =902357a(12) =985597a(13) =1119817a(14) =1479197a(15) =1778197a(16) =2491847a(17) =2738117a(18) =2910997a(19) =3183727a(20) =4444747a(21) =4562741a(22) =4804957a(23) =5184121a(24) =6145277a(25) =7381261a(26) =8958097a(27) =9146021a(28) =11609837