a(n) is the product of n, the n-th prime and the n-th composite number.

Terms

a(0) =8a(1) =36a(2) =120a(3) =252a(4) =550a(5) =936a(6) =1666a(7) =2280a(8) =3312a(9) =5220a(10) =6820a(11) =9324a(12) =11726a(13) =14448a(14) =17625a(15) =22048a(16) =27081a(17) =30744a(18) =38190a(19) =45440a(20) =50589a(21) =59092a(22) =66815a(23) =76896a(24) =92150a(25) =102414a(26) =111240a(27) =125832a(28) =139084a(29) =152550