n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 12 |
6 | 29 |
7 | 61 |
8 | 162 |
9 | 412 |
10 | 1221 |
11 | 3665 |
12 | 12031 |
13 | 40514 |
14 | 143244 |
15 | 518247 |
16 | 1926638 |
17 | 7285835 |
18 | 28013935 |
19 | 109058879 |
20 | 429366751 |
[1,2,3,7,12,29,61,162,412,1221,3665,12031,40514, 143244,518247,1926638,7285835,28013935,109058879, 429366751] |