%I
%S 653,16631,40487,50033,52517,67631,80803,138107,145253,147197
%N Primes p that have at least four primitive roots that are not primitive roots mod p^2.
%C 40487 is unusual  it has four primitive roots with this property (5, 5^3, 5^5, 4492) and 5 is the least positive primitive root mod 40487  see A055578.
%e 13425, 18243, 34196, 38462, 39362 and 51787 are primitive roots mod 52517, but not mod 52517^2.
%Y Cf. A060503, A055578, A060518, A060519.
%K more,nonn
%O 1,1
%A _Jud McCranie_, Mar 24 2001
