a(n) = 12*n*(n-1).

Terms

a(0) =0a(1) =0a(2) =24a(3) =72a(4) =144a(5) =240a(6) =360a(7) =504a(8) =672a(9) =864a(10) =1080a(11) =1320a(12) =1584a(13) =1872a(14) =2184a(15) =2520a(16) =2880a(17) =3264a(18) =3672a(19) =4104a(20) =4560a(21) =5040a(22) =5544a(23) =6072a(24) =6624a(25) =7200a(26) =7800a(27) =8424a(28) =9072a(29) =9744