Primes of the form concatenation(A141468(k), k).

Terms

a(0) =43a(1) =107a(2) =149a(3) =2719a(4) =3323a(5) =5641a(6) =5843a(7) =7253a(8) =7757a(9) =8059a(10) =8563a(11) =9067a(12) =12697a(13) =182141a(14) =188147a(15) =224177a(16) =279221a(17) =298237a(18) =300239a(19) =315251a(20) =350281a(21) =360289a(22) =362291a(23) =371299a(24) =388313a(25) =412333a(26) =418339a(27) =424343a(28) =448363a(29) =453367