Composite palindromes with an odd number of prime factors (counted with multiplicity).

Terms

a(0) =8a(1) =44a(2) =66a(3) =99a(4) =171a(5) =212a(6) =222a(7) =242a(8) =252a(9) =272a(10) =282a(11) =292a(12) =333a(13) =343a(14) =363a(15) =404a(16) =434a(17) =464a(18) =474a(19) =494a(20) =555a(21) =575a(22) =595a(23) =606a(24) =616a(25) =646a(26) =656a(27) =696a(28) =747a(29) =777