a(1)=8; if n = Product p_i^e_i, n > 1, then a(n) = Product p_{i+1}^{e_i+2}.

Terms

a(0) =8a(1) =27a(2) =125a(3) =81a(4) =343a(5) =3375a(6) =1331a(7) =243a(8) =625a(9) =9261a(10) =2197a(11) =10125a(12) =4913a(13) =35937a(14) =42875a(15) =729a(16) =6859a(17) =16875a(18) =12167a(19) =27783a(20) =166375a(21) =59319a(22) =24389a(23) =30375a(24) =2401a(25) =132651a(26) =3125a(27) =107811a(28) =29791a(29) =1157625