A105892 Primes for which -20 is a primitive root.

11, 13, 17, 31, 37, 53, 59, 73, 79, 113, 131, 137, 139, 157, 173, 179, 191, 199, 211, 233, 239, 257, 271, 277, 293, 313, 317, 331, 337, 353, 359, 379, 397, 419, 431, 433, 439, 479, 499, 557, 593, 599, 613, 631, 653, 659, 673, 677, 719, 751, 773, 797, 811, 839, 853, 857

Offset

1,1

Links

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

Index entries for primes by primitive root

Mathematica

pr=-20; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

Crossrefs

Sequence in context: A052031 A166009 A240107 * A111337 A359136 A359137

Adjacent sequences: A105889 A105890 A105891 * A105893 A105894 A105895

Keyword

nonn

Author

N. J. A. Sloane, Apr 24 2005

Status

approved