%I #2 Mar 30 2012 17:30:35
%S 6,10,14,15,21,33,35,55,65,77,91,119,133,143,187,209,221,247,299,323,
%T 391,437,493,527,551,589,667,713,851,899,1073,1147,1189,1247,1271,
%U 1333,1457,1517,1591,1739,1763,1927,2021,2173,2279,2419,2491,2623,2747,2773
%N Integers which are not primes or powers of primes such that for all j>i Phi(j)/j > Phi(i)/i.
%t a = 0; Do[ If[ Length[ FactorInteger[n]] > 1 && EulerPhi[n]/n > a, a = EulerPhi[n]/n; Print[n]], {n, 1, 5000} ]
%K easy,nonn
%O 1,1
%A _Robert G. Wilson v_, Oct 02 2001