a(n) = A064989(A324886(n)).

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =9a(6) =7a(7) =6a(8) =15a(9) =25a(10) =11a(11) =81a(12) =13a(13) =49a(14) =15625a(15) =36a(16) =17a(17) =225a(18) =19a(19) =625a(20) =117649a(21) =121a(22) =23a(23) =135a(24) =60025a(25) =169a(26) =21a(27) =2401a(28) =29a(29) =21875