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 A019350 Primes with primitive root 23. 2
 2, 3, 5, 17, 47, 59, 89, 97, 113, 127, 131, 137, 149, 167, 179, 181, 223, 229, 281, 293, 307, 311, 337, 347, 389, 401, 421, 433, 439, 443, 457, 487, 491, 499, 521, 547, 557, 569, 587, 599, 607, 617, 641, 647, 661, 677, 683, 709, 719, 733, 739, 769, 773, 797, 811, 823 (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=23; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &] PROG (PARI) is(n)=isprime(n) && n!=23 && znorder(Mod(23, n))==n-1 \\ Charles R Greathouse IV, Sep 28 2015 CROSSREFS Sequence in context: A076706 A243441 A256426 * A235630 A235636 A268130 Adjacent sequences:  A019347 A019348 A019349 * A019351 A019352 A019353 KEYWORD nonn AUTHOR STATUS approved

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