n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 18 |
4 | 180 |
5 | 1800 |
6 | 18000 |
7 | 180000 |
8 | 1800000 |
9 | 18000000 |
10 | 180000000 |
11 | 1800000000 |
12 | 18000000000 |
13 | 180000000000 |
14 | 1800000000000 |
15 | 18000000000000 |
16 | 180000000000000 |
17 | 1800000000000000 |
18 | 18000000000000000 |
19 | 180000000000000000 |
20 | 1800000000000000000 |
21 | 18000000000000000000 |
22 | 180000000000000000000 |
[0,2,18,180,1800,18000,180000,1800000,18000000, 180000000,1800000000,18000000000,180000000000, 1800000000000,18000000000000,180000000000000, 1800000000000000,18000000000000000, 180000000000000000,1800000000000000000, 18000000000000000000,180000000000000000000] |