If n = Product p_i^e_i then p_i < e_i (where e_i > 0) for all i.

Terms

a(0) =1a(1) =8a(2) =16a(3) =32a(4) =64a(5) =81a(6) =128a(7) =243a(8) =256a(9) =512a(10) =648a(11) =729a(12) =1024a(13) =1296a(14) =1944a(15) =2048a(16) =2187a(17) =2592a(18) =3888a(19) =4096a(20) =5184a(21) =5832a(22) =6561a(23) =7776a(24) =8192a(25) =10368a(26) =11664a(27) =15552a(28) =15625a(29) =16384