The sequence is .

The first term is .

The n^th term and the ^th term of the sequence are

and

The ratio (r) =

          (Substitute r = and )

             (Substitute r = and )

           (Substitute r = and )

The ratio of successive terms is the nonzero constant ,

The sequence is geometric with common ratio .

The sequence ( b_n ) is geometric with common ratio .

First four terms are