A058234 Numbers n such that x^n + x^9 + 2 is irreducible over GF(3).

4, 16, 52, 76, 236, 376, 380, 1064, 1460, 4600, 5204

Offset: 1

Author

Robert G. Wilson v, Dec 01 2000

Keywords

• nonn
• more

Comments

All terms are even, as 2 is a root if n is odd. - Robert Israel, Dec 31 2015

Crossrefs

Cf. A057479.

Programs

Maple

select(n  -> Irreduc(x^n + x^9 + 2) mod 3, 2*[$1..1000]); # Robert Israel, Dec 31 2015

Extensions

a(10) and a(11) from Robert Israel, Dec 31 2015