a(n) = n concatenated with n! divided by n.

Terms

a(0) =11a(1) =11a(2) =12a(3) =106a(4) =1024a(5) =1120a(6) =10720a(7) =105040a(8) =1040320a(9) =10362880a(10) =103628800a(11) =1039916800a(12) =10479001600a(13) =106227020800