a(n) = (8*n)^3.

Terms

a(0) =0a(1) =512a(2) =4096a(3) =13824a(4) =32768a(5) =64000a(6) =110592a(7) =175616a(8) =262144a(9) =373248a(10) =512000a(11) =681472a(12) =884736a(13) =1124864a(14) =1404928a(15) =1728000a(16) =2097152a(17) =2515456a(18) =2985984a(19) =3511808a(20) =4096000a(21) =4741632a(22) =5451776a(23) =6229504a(24) =7077888a(25) =8000000a(26) =8998912a(27) =10077696a(28) =11239424a(29) =12487168