n | a(n) |
---|---|
1 | 5 |
2 | 59 |
3 | 599 |
4 | 6799 |
5 | 68899 |
6 | 689999 |
7 | 6999999 |
8 | 77899999 |
9 | 779999999 |
10 | 7889999999 |
11 | 78999999999 |
12 | 799999999999 |
13 | 8689999999999 |
14 | 86999999999999 |
15 | 878999999999999 |
16 | 8799999999999999 |
17 | 88899999999999999 |
18 | 889999999999999999 |
19 | 8989999999999999999 |
20 | 89999999999999999999 |
[5,59,599,6799,68899,689999,6999999,77899999, 779999999,7889999999,78999999999,799999999999, 8689999999999,86999999999999,878999999999999, 8799999999999999,88899999999999999, 889999999999999999,8989999999999999999, 89999999999999999999] |