A058235 Numbers n such that x^n + x^2 + 2 is irreducible over GF(3).

1, 3, 4, 7, 8, 11, 12, 15, 19, 28, 35, 60, 67, 80, 108, 111, 119, 151, 183, 331, 631, 728, 892, 1276

Offset: 1

Author

Robert G. Wilson v, Dec 01 2000

Keywords

• nonn
• more

Crossrefs

Cf. A057460.

Programs

PARI

is(k) = polisirreducible(Mod(1, 3)*(x^k + x*x + 1)); \\ Jinyuan Wang, Apr 15 2020

Extensions

a(24) from Jinyuan Wang, Apr 15 2020