Numbers such that Sigma(m)*UnitarySigma(m)= k*UnitaryPhi(m)^2, for some integer k.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =14a(5) =15a(6) =30a(7) =35a(8) =42a(9) =60a(10) =70a(11) =78a(12) =105a(13) =190a(14) =210a(15) =312a(16) =357a(17) =418a(18) =570a(19) =714a(20) =910a(21) =1045a(22) =1254a(23) =1428a(24) =2090a(25) =2730a(26) =3135a(27) =3640a(28) =4522a(29) =4674