Composite numbers between largest n-digit prime and the smallest (n+1) digit prime.

Terms

a(0) =8a(1) =9a(2) =10a(3) =98a(4) =99a(5) =100a(6) =998a(7) =999a(8) =1000a(9) =1001a(10) =1002a(11) =1003a(12) =1004a(13) =1005a(14) =1006a(15) =1007a(16) =1008a(17) =9974a(18) =9975a(19) =9976a(20) =9977a(21) =9978a(22) =9979a(23) =9980a(24) =9981a(25) =9982a(26) =9983a(27) =9984a(28) =9985a(29) =9986