n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 43 |
6 | 143 |
7 | 509 |
8 | 1922 |
9 | 7651 |
10 | 31965 |
11 | 139685 |
12 | 636712 |
13 | 3020203 |
14 | 14878176 |
15 | 75982829 |
16 | 401654560 |
17 | 2194564531 |
18 | 12377765239 |
19 | 71980880885 |
20 | 431114329728 |
21 | 2656559925883 |
22 | 16825918195484 |
23 | 109439943234749 |
24 | 730365368850192 |
[1,1,2,5,14,43,143,509,1922,7651,31965,139685, 636712,3020203,14878176,75982829,401654560, 2194564531,12377765239,71980880885,431114329728, 2656559925883,16825918195484,109439943234749, 730365368850192] |