Palindromic perfect powers.

Terms

a(0) =1a(1) =4a(2) =8a(3) =9a(4) =121a(5) =343a(6) =484a(7) =676a(8) =1331a(9) =10201a(10) =12321a(11) =14641a(12) =40804a(13) =44944a(14) =69696a(15) =94249a(16) =698896a(17) =1002001a(18) =1030301a(19) =1234321a(20) =1367631a(21) =4008004a(22) =5221225a(23) =6948496a(24) =100020001a(25) =102030201a(26) =104060401a(27) =121242121a(28) =123454321a(29) =125686521