a(n) = 4*(n+1)^2*(n+3)^2*(5*n^2 + 20*n + 12).

Terms

a(0) =432a(1) =9472a(2) =64800a(3) =269568a(4) =842800a(5) =2184192a(6) =4953312a(7) =10163200a(8) =19288368a(9) =34387200a(10) =58238752a(11) =94493952a(12) =147841200a(13) =224186368a(14) =330847200a(15) =476762112a(16) =672713392a(17) =931564800a(18) =1268513568a(19) =1701356800a(20) =2250772272a(21) =2940613632a(22) =3798220000a(23) =4854739968a(24) =6145470000a(25) =7710207232