a(n) = (11*n + 8)^3.

Terms

a(0) =512a(1) =6859a(2) =27000a(3) =68921a(4) =140608a(5) =250047a(6) =405224a(7) =614125a(8) =884736a(9) =1225043a(10) =1643032a(11) =2146689a(12) =2744000a(13) =3442951a(14) =4251528a(15) =5177717a(16) =6229504a(17) =7414875a(18) =8741816a(19) =10218313a(20) =11852352a(21) =13651919a(22) =15625000a(23) =17779581a(24) =20123648a(25) =22665187a(26) =25412184a(27) =28372625a(28) =31554496a(29) =34965783