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A057480 Numbers n such that x^n + x^10 + 1 is irreducible over GF(2). 2
3, 7, 33, 111, 279, 511 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

MATHEMATICA

Do[ If[ ToString[ Factor[ x^n + x^10 + 1, Modulus -> 2 ] ] == ToString[ x^n + x^10 + 1 ], Print[ n ] ], {n, 0, 750} ]

CROSSREFS

Cf. A002475.

Sequence in context: A007646 A238314 A120566 * A051256 A057795 A054935

Adjacent sequences:  A057477 A057478 A057479 * A057481 A057482 A057483

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Sep 27 2000

STATUS

approved

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Last modified March 20 05:34 EDT 2019. Contains 321344 sequences. (Running on oeis4.)