Cubes with at most two different digits.

Terms

a(0) =0a(1) =1a(2) =8a(3) =27a(4) =64a(5) =343a(6) =1000a(7) =1331a(8) =8000a(9) =1000000a(10) =8000000a(11) =1000000000a(12) =8000000000a(13) =1000000000000