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A019347 Primes with primitive root 20. 2
3, 13, 17, 23, 37, 43, 47, 53, 67, 73, 83, 103, 107, 113, 137, 157, 163, 167, 173, 223, 227, 233, 257, 263, 277, 283, 293, 313, 317, 337, 347, 353, 367, 383, 397, 433, 443, 463, 467, 487, 503, 547, 557, 563, 587, 593, 607, 613, 647, 653, 673, 677, 683, 727, 743, 773, 797 (list; graph; refs; listen; history; text; internal format)
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: A040123 A038883 A141188 * A184777 A045433 A216535

Adjacent sequences:  A019344 A019345 A019346 * A019348 A019349 A019350

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified December 3 21:14 EST 2016. Contains 278745 sequences.