Squarefree positive integers of the form u*v*(u^2-v^2) for some integer u,v.

Terms

a(0) =6a(1) =30a(2) =210a(3) =330a(4) =546a(5) =2310a(6) =2730a(7) =3570a(8) =4290a(9) =5610a(10) =6090a(11) =6630a(12) =7854a(13) =8970a(14) =9690a(15) =10374a(16) =10626a(17) =13566a(18) =18354a(19) =19866a(20) =22134a(21) =25806a(22) =26970a(23) =39270a(24) =43890a(25) =51330a(26) =51414a(27) =52026a(28) =54834a(29) =56730