Squarefree numbers that are k*A005117(k) for some k.

Terms

a(0) =1a(1) =30a(2) =42a(3) =70a(4) =165a(5) =247a(6) =330a(7) =442a(8) =570a(9) =805a(10) =1247a(11) =1457a(12) =1749a(13) =1870a(14) =1995a(15) =2183a(16) =2318a(17) =2418a(18) =2706a(19) =2814a(20) =2967a(21) =3358a(22) =3478a(23) =4182a(24) =4505a(25) =4785a(26) =5187a(27) =5394a(28) =5546a(29) =5917