A058219 Numbers n such that x^n + x^13 + 2 is irreducible over GF(3).

4, 6, 12, 14, 28, 40, 54, 78, 86, 246, 390, 702, 854, 1096

Offset

1,1

Links

Table of n, a(n) for n=1..14.

Prog

(PARI) is(k) = polisirreducible(Mod(1, 3)*(x^k + x^13 + 2)); \\ Jinyuan Wang, Apr 15 2020

Crossrefs

Cf. A057483.

Sequence in context: A059891 A020213 A011979 * A131863 A074870 A380230

Adjacent sequences: A058216 A058217 A058218 * A058220 A058221 A058222

Keyword

nonn,more

Author

Robert G. Wilson v, Nov 30 2000

Extensions

a(14) from Jinyuan Wang, Apr 15 2020

Status

approved