n | a(n) |
---|---|
2 | 89 |
3 | 991 |
4 | 9949 |
5 | 99991 |
6 | 999961 |
7 | 9999991 |
8 | 99999989 |
9 | 999999491 |
10 | 9999999881 |
11 | 99999999689 |
12 | 999999999989 |
13 | 9999999999161 |
14 | 99999999999481 |
15 | 999999999999989 |
16 | 9999999999999641 |
17 | 99999999999999961 |
18 | 999999999999999989 |
19 | 9999999999999999961 |
20 | 99999999999999999989 |
[89,991,9949,99991,999961,9999991,99999989, 999999491,9999999881,99999999689,999999999989, 9999999999161,99999999999481,999999999999989, 9999999999999641,99999999999999961, 999999999999999989,9999999999999999961, 99999999999999999989] |