Palindromes with exactly 3 distinct prime factors.

Terms

a(0) =66a(1) =222a(2) =282a(3) =434a(4) =474a(5) =494a(6) =555a(7) =595a(8) =606a(9) =646a(10) =777a(11) =969a(12) =1001a(13) =1221a(14) =1551a(15) =1771a(16) =2222a(17) =2882a(18) =3333a(19) =3553a(20) =4334a(21) =4994a(22) =5335a(23) =5555a(24) =5665a(25) =5885a(26) =5995a(27) =6226a(28) =6446a(29) =6886