Concatenation of consecutive twin primes.

Terms

a(0) =3557a(1) =11131719a(2) =29314143a(3) =59617173a(4) =101103107109a(5) =137139149151a(6) =179181191193a(7) =197199227229a(8) =239241269271a(9) =281283311313a(10) =347349419421a(11) =431433461463a(12) =521523569571a(13) =599601617619a(14) =641643659661a(15) =809811821823a(16) =827829857859