n | a(n) |
---|---|
1 | 10 |
2 | 19 |
3 | 109 |
4 | 199 |
5 | 1099 |
6 | 1999 |
7 | 10999 |
8 | 19999 |
9 | 109999 |
10 | 199999 |
11 | 1099999 |
12 | 1999999 |
13 | 10999999 |
14 | 19999999 |
15 | 109999999 |
16 | 199999999 |
17 | 1099999999 |
18 | 1999999999 |
19 | 10999999999 |
20 | 19999999999 |
21 | 109999999999 |
22 | 199999999999 |
23 | 1099999999999 |
24 | 1999999999999 |
25 | 10999999999999 |
26 | 19999999999999 |
[10,19,109,199,1099,1999,10999,19999,109999, 199999,1099999,1999999,10999999,19999999, 109999999,199999999,1099999999,1999999999, 10999999999,19999999999,109999999999,199999999999, 1099999999999,1999999999999,10999999999999, 19999999999999] |