Numbers with n 0's between 1 and 2.

A133384

Numbers with n 0's between 1 and 2.

Terms

    a(0) =12a(1) =102a(2) =1002a(3) =10002a(4) =100002a(5) =1000002a(6) =10000002a(7) =100000002a(8) =1000000002a(9) =10000000002a(10) =100000000002

External references