Primes of form k^6 + k^3 + 1.

Terms

a(0) =3a(1) =73a(2) =757a(3) =262657a(4) =1772893a(5) =64008001a(6) =85775383a(7) =308933353a(8) =729027001a(9) =15625125001a(10) =17596420453a(11) =30841155073a(12) =46656216001a(13) =225200075257a(14) =885843322057