Smallest palindrome such that every partial concatenation is prime.

Terms

a(0) =2a(1) =3a(2) =3a(3) =3a(4) =3a(5) =77a(6) =1a(7) =191a(8) =1a(9) =3a(10) =33a(11) =191a(12) =9a(13) =3a(14) =393a(15) =99a(16) =3a(17) =333a(18) =747a(19) =1221a(20) =727a(21) =1881a(22) =1331a(23) =9009a(24) =7447a(25) =101a(26) =909a(27) =373a(28) =909a(29) =3773