n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 119 |
6 | 700 |
7 | 4748 |
8 | 36403 |
9 | 310851 |
10 | 2922606 |
11 | 29977587 |
12 | 332929492 |
13 | 3978258079 |
14 | 50872884285 |
15 | 692985674373 |
16 | 10015172966221 |
17 | 153021613683924 |
18 | 2464031776132958 |
19 | 41698912656882644 |
20 | 739771703127828419 |
21 | 13727160292457369098 |
22 | 265876635231121617716 |
[1,1,2,6,24,119,700,4748,36403,310851,2922606, 29977587,332929492,3978258079,50872884285, 692985674373,10015172966221,153021613683924, 2464031776132958,41698912656882644, 739771703127828419,13727160292457369098, 265876635231121617716] |