n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 23 |
4 | 102 |
5 | 496 |
6 | 2570 |
7 | 13959 |
8 | 78682 |
9 | 457243 |
10 | 2727360 |
11 | 16647048 |
12 | 103759186 |
13 | 659500772 |
14 | 4271197824 |
15 | 28175622291 |
16 | 189321228022 |
17 | 1296246842443 |
18 | 9049626101836 |
19 | 64481397834665 |
20 | 469461395956168 |
21 | 3497006117588399 |
22 | 26688813841105524 |
23 | 208977790442594368 |
24 | 1680981707733908594 |
[1,2,6,23,102,496,2570,13959,78682,457243,2727360, 16647048,103759186,659500772,4271197824, 28175622291,189321228022,1296246842443, 9049626101836,64481397834665,469461395956168, 3497006117588399,26688813841105524, 208977790442594368,1680981707733908594] |