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A143649 Consider numbers m,n such that UnitaryPhi(m)=UnitaryPhi(n)=3*(m*n)^(1/2)/4, m <= n; sequence gives values of n. 1

%I #13 Sep 04 2018 10:04:30

%S 4,56,80,4032,4960,21760,157248,1024128,39940992,2354688,91832832,

%T 729999360

%N Consider numbers m,n such that UnitaryPhi(m)=UnitaryPhi(n)=3*(m*n)^(1/2)/4, m <= n; sequence gives values of n.

%C a(12) is an example where m != n.

%Y Cf. A047994, A143650 (values of m).

%K nonn,more

%O 1,1

%A _Yasutoshi Kohmoto_, Nov 04 2008

%E Removed the pair (m,n) = (4805,5445). - _R. J. Mathar_, Sep 04 2018

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)