n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 2 |
8 | 3 |
9 | 6 |
10 | 12 |
11 | 24 |
12 | 63 |
13 | 164 |
14 | 424 |
15 | 1163 |
16 | 2919 |
17 | 8289 |
18 | 24060 |
19 | 70704 |
20 | 212130 |
21 | 672520 |
22 | 2080293 |
23 | 6485878 |
24 | 20449084 |
[1,1,1,1,1,1,2,3,6,12,24,63,164,424,1163,2919, 8289,24060,70704,212130,672520,2080293,6485878, 20449084] |