Palindromes with exactly 3 prime factors (counted with multiplicity).

Terms

a(0) =8a(1) =44a(2) =66a(3) =99a(4) =171a(5) =212a(6) =222a(7) =242a(8) =282a(9) =292a(10) =333a(11) =343a(12) =363a(13) =404a(14) =434a(15) =474a(16) =494a(17) =555a(18) =575a(19) =595a(20) =606a(21) =646a(22) =747a(23) =777a(24) =909a(25) =969a(26) =1001a(27) =1221a(28) =1331a(29) =1551