n | a(n) |
---|---|
1 | 9 |
2 | 90 |
3 | 900 |
4 | 9000 |
5 | 90000 |
6 | 900000 |
7 | 9000000 |
8 | 90000000 |
9 | 900000000 |
10 | 9000000000 |
11 | 90000000000 |
12 | 900000000000 |
13 | 9000000000000 |
14 | 90000000000000 |
15 | 900000000000000 |
16 | 9000000000000000 |
17 | 90000000000000000 |
18 | 900000000000000000 |
19 | 9000000000000000000 |
20 | 90000000000000000000 |
[9,90,900,9000,90000,900000,9000000,90000000, 900000000,9000000000,90000000000,900000000000, 9000000000000,90000000000000,900000000000000, 9000000000000000,90000000000000000, 900000000000000000,9000000000000000000, 90000000000000000000] |