n | a(n) |
---|---|
1 | 9 |
2 | 98 |
3 | 999 |
4 | 9996 |
5 | 99995 |
6 | 999996 |
7 | 9999997 |
8 | 99999992 |
9 | 999999999 |
10 | 9999999990 |
11 | 99999999990 |
12 | 999999999996 |
13 | 9999999999990 |
14 | 99999999999998 |
15 | 999999999999990 |
16 | 9999999999999984 |
17 | 99999999999999990 |
18 | 999999999999999990 |
19 | 9999999999999999990 |
20 | 99999999999999999980 |
[9,98,999,9996,99995,999996,9999997,99999992, 999999999,9999999990,99999999990,999999999996, 9999999999990,99999999999998,999999999999990, 9999999999999984,99999999999999990, 999999999999999990,9999999999999999990, 99999999999999999980] |