a(n) = n^2 * (n+1)^3.

Terms

a(0) =0a(1) =8a(2) =108a(3) =576a(4) =2000a(5) =5400a(6) =12348a(7) =25088a(8) =46656a(9) =81000a(10) =133100a(11) =209088a(12) =316368a(13) =463736a(14) =661500a(15) =921600a(16) =1257728a(17) =1685448a(18) =2222316a(19) =2888000a(20) =3704400a(21) =4695768a(22) =5888828a(23) =7312896a(24) =9000000a(25) =10985000a(26) =13305708a(27) =16003008a(28) =19120976a(29) =22707000