Numbers of the form p*q*r where p,q,r are distinct odd palindromic primes (odd terms from A002385).

Terms

a(0) =105a(1) =165a(2) =231a(3) =385a(4) =1515a(5) =1965a(6) =2121a(7) =2265a(8) =2715a(9) =2751a(10) =2865a(11) =3171a(12) =3333a(13) =3535a(14) =3801a(15) =4011a(16) =4323a(17) =4585a(18) =4695a(19) =4983a(20) =5285a(21) =5295a(22) =5555a(23) =5595a(24) =5745a(25) =5973a(26) =6303a(27) =6335a(28) =6573a(29) =6685