Nonsquarefree palindromes.

Terms

a(0) =4a(1) =8a(2) =9a(3) =44a(4) =88a(5) =99a(6) =121a(7) =171a(8) =212a(9) =232a(10) =242a(11) =252a(12) =272a(13) =292a(14) =333a(15) =343a(16) =363a(17) =404a(18) =414a(19) =424a(20) =444a(21) =464a(22) =484a(23) =525a(24) =575a(25) =585a(26) =616a(27) =636a(28) =656a(29) =666