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%I #5 Mar 31 2014 01:49:34
%S 2,3,6,7,9,14,17,18,23,27,34,37,43,46,47,49,53,54,73,74,81,83,86,94,
%T 97,98,103,106,107,113,137,146,157,162,166,167,173,193,194,197,206,
%U 214,223,226,227,233,243,257,263,274,277,283,289,293,307,314,317,334,343,346
%N Numbers with primitive root 5.
%H Vincenzo Librandi, <a href="/A167793/b167793.txt">Table of n, a(n) for n = 1..1000</a>
%t pr=5; Select[Range[2,2000], MultiplicativeOrder[pr,# ] == EulerPhi[ # ] &]
%Y Cf. A019335 (primes with primitive root 5)
%K nonn
%O 1,1
%A _T. D. Noe_, Nov 12 2009
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