A058237 Numbers n such that x^n + x^4 + 2 is irreducible over GF(3).

1, 2, 3, 5, 8, 9, 13, 16, 24, 29, 56, 120, 160, 216, 493, 1093

Offset: 1

Author

Robert G. Wilson v, Dec 01 2000

Keywords

• nonn
• more

Crossrefs

Cf. A057463.

Programs

PARI

is(k) = polisirreducible(Mod(1, 3)*(x^k + x^4 + 2)); \\ Jinyuan Wang, Apr 15 2020

Extensions

a(16) from Jinyuan Wang, Apr 15 2020