Sequence of digits in SQL

Hi all

11g R2 DB.

Anyway is in SQL to print the below sequence (first 10 numbers).
1
1
3
7
17
41
...
...
Thank you.

Try this:

SQL> select rownum, f1 from (
  2  --
  3  select f1
  4    from dual
  5  MODEL
  6     dimension by (0 d)
  7     measures (0 F1)
  8     rules iterate(10)
  9         (F1[iteration_number] = case
 10                                 when iteration_number in (0,1)
 11                                 then
 12                                    1
 13                                 else
 14                                    nvl(f1[cv()-1],1) * 2 + nvl(f1[cv()-2],0)
 15                                 end
 16         )
 17  --
 18  )       ;

    ROWNUM         F1
---------- ----------
         1          1
         2          1
         3          3
         4          7
         5         17
         6         41
         7         99
         8        239
         9        577
        10       1393

10 rows selected.

Tags: Database

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