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%I #15 Mar 31 2014 14:13:45
%S 13,23,29,37,41,43,47,83,89,97,113,131,163,173,181,191,251,257,263,
%T 269,271,281,293,311,317,347,359,367,373,409,421,433,443,449,463,467,
%U 479,491,499,503,509,521,571,587,619,631,641,643,647,661,677,719,727,739,773,797
%N Primes with primitive root 76.
%H Vincenzo Librandi, <a href="/A019399/b019399.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=76; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]
%K nonn
%O 1,1
%A _David W. Wilson_