n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 12 |
5 | 60 |
6 | 60 |
7 | 420 |
8 | 1680 |
9 | 5040 |
10 | 5040 |
11 | 55440 |
12 | 332640 |
13 | 4324320 |
14 | 8648640 |
15 | 43243200 |
16 | 172972800 |
17 | 2940537600 |
18 | 8821612800 |
19 | 167610643200 |
20 | 335221286400 |
21 | 7039647014400 |
22 | 14079294028800 |
23 | 323823762662400 |
24 | 647647525324800 |
25 | 3238237626624000 |
26 | 6476475253248000 |
[1,1,2,6,12,60,60,420,1680,5040,5040,55440,332640, 4324320,8648640,43243200,172972800,2940537600, 8821612800,167610643200,335221286400, 7039647014400,14079294028800,323823762662400, 647647525324800,3238237626624000,6476475253248000] |