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A057482 Numbers n such that x^n + x^12 + 1 is irreducible over GF(2). 2
3, 5, 7, 9, 17, 49, 97, 257, 425 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..9.

MATHEMATICA

Do[ If[ ToString[ Factor[ x^n + x^12 + 1, Modulus -> 2 ] ] == ToString[ x^n + x^12 + 1 ], Print[ n ] ], {n, 0, 750} ]

CROSSREFS

Cf. A002475.

Sequence in context: A220221 A212292 A270837 * A114136 A025072 A083107

Adjacent sequences:  A057479 A057480 A057481 * A057483 A057484 A057485

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Sep 27 2000

STATUS

approved

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Last modified October 19 21:08 EDT 2019. Contains 328228 sequences. (Running on oeis4.)