n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 5 |
5 | 22 |
6 | 52 |
7 | 283 |
8 | 855 |
9 | 5451 |
10 | 19921 |
11 | 144074 |
12 | 614866 |
13 | 4941987 |
14 | 24040451 |
15 | 211648665 |
16 | 1152972925 |
17 | 10998989896 |
18 | 66200911138 |
19 | 678600959525 |
20 | 4465023867757 |
21 | 48850849177703 |
22 | 348383154017581 |
23 | 4045835816532096 |
24 | 31052765897026352 |
25 | 381022649523561501 |
[1,1,1,3,5,22,52,283,855,5451,19921,144074,614866, 4941987,24040451,211648665,1152972925,10998989896, 66200911138,678600959525,4465023867757, 48850849177703,348383154017581,4045835816532096, 31052765897026352,381022649523561501] |