Primes from products of split even-digit primes.

Terms

a(0) =3a(1) =7a(2) =3a(3) =7a(4) =103a(5) =109a(6) =103a(7) =409a(8) =601a(9) =109a(10) =709a(11) =907a(12) =523a(13) =139a(14) =193a(15) =853a(16) =379a(17) =397a(18) =739a(19) =937a(20) =499a(21) =223a(22) =499a(23) =1621a(24) =2161a(25) =6121a(26) =6211a(27) =4261a(28) =4621a(29) =6421