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A105913 Primes for which -41 is a primitive root. 1
2, 13, 17, 23, 31, 53, 59, 83, 89, 97, 103, 107, 127, 131, 139, 149, 163, 181, 193, 229, 233, 251, 257, 281, 283, 293, 307, 313, 317, 359, 367, 419, 421, 431, 443, 457, 467, 509, 521, 557, 593, 599, 601, 607, 619, 641, 647, 653, 709, 739, 743, 757, 773, 787, 809, 859, 863 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

pr=-41; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

CROSSREFS

Sequence in context: A038889 A152652 A142339 * A020480 A018459 A037384

Adjacent sequences:  A105910 A105911 A105912 * A105914 A105915 A105916

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 24 2005

STATUS

approved

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Last modified August 10 08:13 EDT 2020. Contains 336368 sequences. (Running on oeis4.)