a(n) = (11*n)^3.

Terms

a(0) =0a(1) =1331a(2) =10648a(3) =35937a(4) =85184a(5) =166375a(6) =287496a(7) =456533a(8) =681472a(9) =970299a(10) =1331000a(11) =1771561a(12) =2299968a(13) =2924207a(14) =3652264a(15) =4492125a(16) =5451776a(17) =6539203a(18) =7762392a(19) =9129329a(20) =10648000a(21) =12326391a(22) =14172488a(23) =16194277a(24) =18399744a(25) =20796875a(26) =23393656a(27) =26198073a(28) =29218112a(29) =32461759