n | a(n) |
---|---|
1 | 20 |
2 | 380 |
3 | 3980 |
4 | 39980 |
5 | 399980 |
6 | 3999980 |
7 | 39999980 |
8 | 399999980 |
9 | 3999999980 |
10 | 39999999980 |
11 | 399999999980 |
12 | 3999999999980 |
13 | 39999999999980 |
14 | 399999999999980 |
15 | 3999999999999980 |
16 | 39999999999999980 |
17 | 399999999999999980 |
[20,380,3980,39980,399980,3999980,39999980, 399999980,3999999980,39999999980,399999999980, 3999999999980,39999999999980,399999999999980, 3999999999999980,39999999999999980, 399999999999999980] |