A058238 Numbers n such that x^n + x^5 + 2 is irreducible over GF(3).

4, 6, 8, 20, 22, 32, 46, 56, 104, 200, 238, 284, 764, 958, 1820

Offset

1,1

Links

Table of n, a(n) for n=1..15.

Prog

(PARI) is(k) = polisirreducible(Mod(1, 3)*(x^k + x^5 + 2)); \\ Jinyuan Wang, Apr 15 2020

Crossrefs

Sequence in context: A247280 A226237 A114315 * A191697 A073437 A019196

Adjacent sequences: A058235 A058236 A058237 * A058239 A058240 A058241

Keyword

nonn,more

Author

Robert G. Wilson v, Dec 01 2000

Extensions

a(15) from Jinyuan Wang, Apr 15 2020

Status

approved