n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 12 |
6 | 48 |
7 | 192 |
8 | 768 |
9 | 3840 |
10 | 23040 |
11 | 161280 |
12 | 1128960 |
13 | 9031680 |
14 | 72253440 |
15 | 578027520 |
16 | 4624220160 |
17 | 41617981440 |
18 | 416179814400 |
19 | 4577977958400 |
20 | 54935735500800 |
21 | 659228826009600 |
22 | 8569974738124800 |
23 | 119979646333747200 |
24 | 1679715048672460800 |
25 | 25195725730086912000 |
26 | 377935885951303680000 |
[1,1,1,2,4,12,48,192,768,3840,23040,161280, 1128960,9031680,72253440,578027520,4624220160, 41617981440,416179814400,4577977958400, 54935735500800,659228826009600,8569974738124800, 119979646333747200,1679715048672460800, 25195725730086912000,377935885951303680000] |