%I #10 Apr 17 2020 07:50:00
%S 4,6,12,14,28,40,54,78,86,246,390,702,854,1096
%N Numbers n such that x^n + x^13 + 2 is irreducible over GF(3).
%o (PARI) is(k) = polisirreducible(Mod(1, 3)*(x^k + x^13 + 2)); \\ _Jinyuan Wang_, Apr 15 2020
%Y Cf. A057483.
%K nonn,more
%O 1,1
%A _Robert G. Wilson v_, Nov 30 2000
%E a(14) from _Jinyuan Wang_, Apr 15 2020