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%I #15 Nov 29 2022 01:19:42
%S 9,15,39,105,119,153,177,209,3143,13169,19833,33567,53129,64439,88871,
%T 109865,122945,138543
%N Numbers k such that x^k + x^8 + 1 is irreducible over GF(2).
%C Any subsequent terms are > 300000. - _Lucas A. Brown_, Nov 28 2022
%H Lucas A. Brown, <a href="https://github.com/lucasaugustus/oeis/blob/main/irred_trinom_f2.py">Python program</a>.
%H Lucas A. Brown, <a href="https://github.com/lucasaugustus/oeis/blob/main/irred_trinom_f2.sage">Sage program</a>.
%o (PARI) is(k) = polisirreducible(Mod(1, 2)*(x^k + x^8 + 1)); \\ _Jinyuan Wang_, Apr 15 2020
%Y Cf. A002475.
%K nonn,more
%O 1,1
%A _Robert G. Wilson v_, Sep 27 2000
%E a(9) from _Jinyuan Wang_, Apr 15 2020
%E a(10)-a(18) from _Lucas A. Brown_, Nov 28 2022
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