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A107222
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Number of primitive normal polynomials of degree n over GF(2).
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1
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1, 1, 1, 1, 3, 3, 7, 7, 19, 29, 87, 52, 315, 291, 562, 1017, 3825, 2870, 13797, 11255, 23579, 59986, 178259, 103680, 607522, 859849, 1551227, 1815045, 9203747, 5505966, 28629151, 33552327, 78899078
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,5
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COMMENTS
| No formula for the terms is currently known. [Joerg Arndt, Apr 2 2011]
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LINKS
| Joerg Arndt, fxtbook, section 42.6.3 "The number of binary normal bases", pp.904-907
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EXAMPLE
| a(9) (the eighth entry) is 19 because there are 19 primitive normal polynomials of degree 9 over GF(2).
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CROSSREFS
| Cf. A027362, A135498.
Sequence in context: A146812 A147236 A146599 * A050613 A145940 A147103
Adjacent sequences: A107219 A107220 A107221 * A107223 A107224 A107225
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KEYWORD
| nonn,hard,more
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AUTHOR
| Joerg Arndt (arndt(AT)jjj.de), Jun 08 2005, Oct 15 2005
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EXTENSIONS
| Three more terms added from the Arndt website by N. J. A. Sloane (njas(AT)research.att.com), Feb 22 2008
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