n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 16 |
5 | 55 |
6 | 222 |
7 | 950 |
8 | 4265 |
9 | 19591 |
10 | 91678 |
11 | 434005 |
12 | 2073783 |
13 | 9979772 |
14 | 48315186 |
15 | 235088794 |
16 | 1148891118 |
17 | 5636168859 |
18 | 27743309673 |
[1,2,5,16,55,222,950,4265,19591,91678,434005, 2073783,9979772,48315186,235088794,1148891118, 5636168859,27743309673] |