Squarefree balanced numbers (i.e., squarefree members of A020492).

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =14a(5) =15a(6) =30a(7) =35a(8) =42a(9) =70a(10) =78a(11) =105a(12) =190a(13) =210a(14) =357a(15) =418a(16) =570a(17) =714a(18) =910a(19) =1045a(20) =1254a(21) =2090a(22) =2730a(23) =3135a(24) =4522a(25) =4674a(26) =5278a(27) =6270a(28) =10659a(29) =12441