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A057460
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Numbers n such that x^n + x^2 + 1 is irreducible over GF(2).
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2
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1, 3, 5, 11, 21, 29, 35, 93, 123, 333, 845, 4125, 10437, 10469, 14211, 20307, 34115, 47283, 50621, 57341
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| I. F. Blake, S. Gao and R. J. Lambert, "Constructive problems for irreducible polynomials over finite fields", in Information Theory and Applications, LNCS 793, Springer-Verlag, Berlin, 1994, 1-23, See Table 2.
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LINKS
| Joerg Arndt, Fxtbook
Index entries for sequences related to trinomials over GF(2)
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MATHEMATICA
| Do[ If[ ToString[ Factor[ x^n + x^2 + 1, Modulus -> 2 ] ] == ToString[ x^n + x^2 + 1 ], Print[ n ] ], {n, 0, 750} ]
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CROSSREFS
| Cf. A002475, A074710.
Sequence in context: A094588 A082713 A074710 * A093328 A045515 A146787
Adjacent sequences: A057457 A057458 A057459 * A057461 A057462 A057463
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 27 2000
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EXTENSIONS
| More terms from Richard Brent, Sep 05, 2002
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