A019392 - OEIS

%I #14 Mar 31 2014 06:54:34

%S 2,29,37,41,43,47,59,67,71,109,157,167,173,179,181,199,229,233,239,

%T 241,257,269,283,311,313,317,347,353,367,443,449,457,461,491,509,523,

%U 587,593,599,619,643,647,653,661,683,709,719,733,751,769,787,809,857,863,887,907

%N Primes with primitive root 69.

%H Vincenzo Librandi, <a href="/A019392/b019392.txt">Table of n, a(n) for n = 1..1000</a>

%H <a href="/index/Pri#primes_root">Index entries for primes by primitive root</a>

%t pr=69; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

%K nonn

%O 1,1

%A _David W. Wilson_