# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a057480 Showing 1-1 of 1 %I A057480 #17 Nov 29 2022 01:19:55 %S A057480 3,7,33,111,279,511,1047,1239,8119,15727,16153,22617,38407 %N A057480 Numbers k such that x^k + x^10 + 1 is irreducible over GF(2). %C A057480 Any subsequent terms are > 300000. - _Lucas A. Brown_, Nov 28 2022 %H A057480 Lucas A. Brown, Python program. %H A057480 Lucas A. Brown, Sage program. %o A057480 (PARI) is(k) = polisirreducible(Mod(1, 2)*(x^k + x^10 + 1)); \\ _Jinyuan Wang_, Apr 15 2020 %Y A057480 Cf. A002475. %K A057480 nonn,more %O A057480 1,1 %A A057480 _Robert G. Wilson v_, Sep 27 2000 %E A057480 a(7)-a(8) from _Jinyuan Wang_, Apr 15 2020 %E A057480 a(9)-a(13) from _Lucas A. Brown_, Nov 28 2022 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE