

A074710


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


1



1, 3, 5, 11, 21, 29, 35, 93, 123, 333, 845
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OFFSET

1,2


COMMENTS

Agrees with A057460 as far as it goes, but is a different sequence.
The next candidate is 4125.


LINKS

Table of n, a(n) for n=1..11.
I. F. Blake, S. Gao and R. J. Lambert, Constructive problems for irreducible polynomials over finite fields, in Information Theory and Applications, LNCS 793, SpringerVerlag, Berlin, 1994, 123, See Table 2.
Index entries for sequences related to trinomials over GF(2)


CROSSREFS

Cf. A002475.
Sequence in context: A293948 A281318 A082713 * A057460 A269112 A093328
Adjacent sequences: A074707 A074708 A074709 * A074711 A074712 A074713


KEYWORD

nonn,nice


AUTHOR

Richard P. Brent, Sep 05 2002


STATUS

approved



