%I #14 Jul 11 2019 19:20:10
%S 2,3,4,6,8,9,10,12,14,15,16,18,20,21,22,24,26,28,30,32,36,40,42,44,45,
%T 48,50,52,54,56,60,64,66,68,70,72,78,80,84,88,90,96,100,102,104,105,
%U 108,110,112,114,120,126,130,132,138,140,144,150,154,156,160,162,168
%N Numbers n such that tau(n)^2 > phi(n).
%H Ivan Neretin, <a href="/A068577/b068577.txt">Table of n, a(n) for n = 1..396</a> (full sequence)
%t Select[Range[170], DivisorSigma[0, #]^2 > EulerPhi[#] &] (* _Ivan Neretin_, Oct 16 2016 *)
%K easy,nonn,fini,full
%O 1,1
%A _Benoit Cloitre_, Mar 26 2002