A105900 - OEIS

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A105900

Primes for which -28 is a primitive root.

1

3, 5, 13, 17, 19, 31, 41, 47, 59, 73, 83, 89, 101, 103, 131, 139, 167, 173, 181, 227, 229, 251, 257, 269, 283, 293, 307, 311, 313, 353, 367, 383, 397, 409, 419, 433, 461, 467, 479, 503, 509, 521, 523, 563, 577, 587, 593, 607, 619, 643, 647, 661, 677, 691, 719, 727, 733

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OFFSET

1,1

LINKS

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

Index entries for primes by primitive root

MATHEMATICA

pr=-28; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

CROSSREFS

Sequence in context: A180944 A049282 A003625 * A260191 A094745 A072742

Adjacent sequences: A105897 A105898 A105899 * A105901 A105902 A105903

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 24 2005

STATUS

approved