Palindromic concatenation of prime divisors of numbers from A192137.

Terms

a(0) =2a(1) =3a(2) =2a(3) =5a(4) =7a(5) =2a(6) =3a(7) =11a(8) =2a(9) =5a(10) =3a(11) =2a(12) =313a(13) =7a(14) =2a(15) =323a(16) =3a(17) =101a(18) =313a(19) =717a(20) =11a(21) =5a(22) =2a(23) =343a(24) =131a(25) =151a(26) =353a(27) =181a(28) =191a(29) =323