Earliest sequence with a(a(n)) = n^3.

Terms

a(0) =0a(1) =1a(2) =3a(3) =8a(4) =5a(5) =64a(6) =7a(7) =216a(8) =27a(9) =10a(10) =729a(11) =12a(12) =1331a(13) =14a(14) =2197a(15) =16a(16) =3375a(17) =18a(18) =4913a(19) =20a(20) =6859a(21) =22a(22) =9261a(23) =24a(24) =12167a(25) =26a(26) =15625a(27) =512a(28) =29a(29) =21952