A057482 - OEIS

A057482

Numbers n such that x^n + x^12 + 1 is irreducible over GF(2).

3, 5, 7, 9, 17, 49, 97, 257, 425, 895, 1385, 4807, 11303, 25175, 103943, 104975, 161993, 282455

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OFFSET

1,1

COMMENTS

Any subsequent terms are > 300000.

LINKS

Lucas A. Brown, Python program.

Lucas A. Brown, Sage program.

PROG

(PARI) is(k) = polisirreducible(Mod(1, 2)*(x^k + x^12 + 1)); \\ Jinyuan Wang, Apr 15 2020

CROSSREFS

KEYWORD

nonn,more

AUTHOR

EXTENSIONS

a(10)-a(11) from Jinyuan Wang, Apr 15 2020

a(12)-a(18) from Lucas A. Brown, Nov 29 2022

STATUS

approved