Primes that are the concatenation of prime(p) and p where p is a prime.

Terms

a(0) =53a(1) =6719a(2) =15737a(3) =587107a(4) =1297211a(5) =1823281a(6) =1913293a(7) =3067439a(8) =3593503a(9) =3943547a(10) =4397599a(11) =5503727a(12) =5651743a(13) =6353827a(14) =6361829a(15) =6823877a(16) =7109911a(17) =7283929a(18) =7523953a(19) =85131061a(20) =85271063a(21) =87611093a(22) =88071097a(23) =104331277a(24) =125031493a(25) =128411531a(26) =130031549a(27) =133311583a(28) =141071663