n | a(n) |
---|---|
1 | 1 |
2 | 19 |
3 | 199 |
4 | 1099 |
5 | 10999 |
6 | 109999 |
7 | 1099999 |
8 | 10999999 |
9 | 109999999 |
10 | 1099999999 |
11 | 10999999999 |
12 | 109999999999 |
13 | 1099999999999 |
14 | 10999999999999 |
15 | 100999999999999 |
16 | 1009999999999999 |
17 | 10099999999999999 |
18 | 100999999999999999 |
19 | 1009999999999999999 |
20 | 10099999999999999999 |
[1,19,199,1099,10999,109999,1099999,10999999, 109999999,1099999999,10999999999,109999999999, 1099999999999,10999999999999,100999999999999, 1009999999999999,10099999999999999, 100999999999999999,1009999999999999999, 10099999999999999999] |