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A094319
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Prime values of Lehmer's polynomial 263*x^2+3.
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1
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3, 4211, 51551, 177791, 420803, 4043891, 4444703, 4864451, 9898271, 13196291, 16437503, 16967711, 34846451, 37181891, 44210303, 48628703, 56622851, 64181471, 75558851, 82476803, 95946611, 101097203, 107724803, 113178371, 137858291, 140152703, 165804671
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| For the first 206 primes p assumed by this quadratic form with x>=0, the number 326 is a primitive root modulo p.
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REFERENCES
| K. Ireland and M. Rosen, A Classical Introduction to Modern Number Theory. Springer-Verlag, NY, 1982, p. 47.
D. H. Lehmer, A note on primitive roots, Scripta Math., 26 1963 117-119.
Pieter Moree, Posting to Number Theory List, Jun 03, 2004.
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LINKS
| Pieter Moree, Primitive root producing quadratics
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CROSSREFS
| Cf. A094320.
Sequence in context: A116213 A136544 A024048 * A003166 A168556 A200950
Adjacent sequences: A094316 A094317 A094318 * A094320 A094321 A094322
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jun 03 2004
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