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%I #19 Jun 24 2022 04:33:59
%S 5,51,171,357,442,582,1071,1250,1292,1460,1746,5456,6435,6825,7248,
%T 8060,8140,8540,9348,9486,9516,9594,9632,9636,10476,10860,10950,12192,
%U 20910,23160,23680,25308,27468,28032,29340,31392,34000,37488,45220,49504,50388,51680
%N Numbers k such that phi(k) = bigomega(k)*tau(k)^2.
%C Conjecture: a(116) = 14137200 is the last term of this sequence (checked up to 10^10). - _Amiram Eldar_, Jun 24 2022
%H Amiram Eldar, <a href="/A068540/b068540.txt">Table of n, a(n) for n = 1..116</a> (terms 1..100 from Harvey P. Dale)
%t Select[Range[46000],EulerPhi[#]==PrimeOmega[#]DivisorSigma[0,#]^2&] (* _Harvey P. Dale_, Jun 06 2021 *)
%Y Cf. A000005, A000010, A001222.
%K easy,nonn
%O 1,1
%A _Benoit Cloitre_, Mar 25 2002
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