n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 24 |
5 | 96 |
6 | 388 |
7 | 1667 |
8 | 7278 |
9 | 32726 |
10 | 149232 |
11 | 692014 |
12 | 3244182 |
13 | 15374906 |
14 | 73474008 |
15 | 353835147 |
16 | 1714967402 |
17 | 8360511370 |
18 | 40964207460 |
19 | 201630767026 |
20 | 996494168808 |
21 | 4943036743112 |
22 | 24601517883704 |
23 | 122815436413582 |
24 | 614828204108840 |
[1,1,2,7,24,96,388,1667,7278,32726,149232,692014, 3244182,15374906,73474008,353835147,1714967402, 8360511370,40964207460,201630767026,996494168808, 4943036743112,24601517883704,122815436413582, 614828204108840] |