Numbers with prime factorization pqrst^2u^2.

Terms

a(0) =180180a(1) =235620a(2) =263340a(3) =278460a(4) =300300a(5) =311220a(6) =318780a(7) =376740a(8) =392700a(9) =401940a(10) =406980a(11) =420420a(12) =429660a(13) =437580a(14) =438900a(15) =450450a(16) =464100a(17) =475020a(18) =489060a(19) =492660a(20) =507780a(21) =512820a(22) =518700a(23) =531300a(24) =549780a(25) =550620a(26) =568260a(27) =589050a(28) =592020a(29) =595980