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%I #7 Mar 30 2012 18:34:55
%S 1103,6569,13187,14939,15313,16649,18587,22091,22769,25163,26189,
%T 26759,32069,32647,33289,34381,34939,37397,38459,39047,42863,47189,
%U 47699,54011,54139,57173,57527,57923,59539,61553,63311,63347,63467
%N Primes p that have exactly three primitive roots that are not primitive roots mod p^2.
%C If x is a primitive root mod prime p then either x is a primitive root mod p^2 or x has order p-1 mod p^2.
%e 284, 793 and 1054 are primitive roots mod 1103, but not mod 1103^2.
%Y Cf. A060503, A055578, A060518, A060520.
%K nonn
%O 1,1
%A _Jud McCranie_, Mar 24 2001
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