Numbers k such that 2^k + k^3 + 1 is prime.

Terms

a(0) =0a(1) =2a(2) =6a(3) =8a(4) =20a(5) =38a(6) =96a(7) =146a(8) =236a(9) =458a(10) =726a(11) =962a(12) =1422a(13) =2864a(14) =3858a(15) =5228a(16) =9822a(17) =21774a(18) =32336a(19) =33336a(20) =43556