The (10^n)-th composite number.

Terms

a(0) =4a(1) =18a(2) =133a(3) =1197a(4) =11374a(5) =110487a(6) =1084605a(7) =10708555a(8) =106091745a(9) =1053422339a(10) =10475688327a(11) =104287176419