A105878 Primes for which -6 is a primitive root.

13, 17, 19, 23, 41, 47, 61, 67, 71, 89, 109, 113, 137, 157, 167, 211, 229, 233, 257, 263, 277, 283, 331, 359, 373, 383, 397, 401, 449, 479, 503, 521, 523, 547, 569, 593, 599, 613, 619, 641, 647, 661, 691, 709, 719, 733, 739, 743, 757, 761, 787, 809, 811, 829, 839, 853

Offset

1,1

Links

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

Index entries for primes by primitive root

Mathematica

pr=-6; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

Prog

(PARI) is(n)=isprime(n) && n>7 && znorder(Mod(-6, n))==n-1 \\ Charles R Greathouse IV, Feb 23 2017

Crossrefs

Sequence in context: A268593 A175873 A167802 * A054476 A319504 A339912

Adjacent sequences: A105875 A105876 A105877 * A105879 A105880 A105881

Keyword

nonn

Author

N. J. A. Sloane, Apr 24 2005

Status

approved