n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 12 |
5 | 30 |
6 | 240 |
7 | 140 |
8 | 840 |
9 | 3780 |
10 | 15120 |
11 | 2772 |
12 | 221760 |
13 | 12012 |
14 | 960960 |
15 | 9266400 |
16 | 10810800 |
17 | 218790 |
18 | 7351344000 |
19 | 923780 |
20 | 16761064320 |
21 | 3259095840 |
22 | 3910915008 |
23 | 16224936 |
24 | 41977154419200 |
25 | 2028117000 |
26 | 249864014400 |
[1,1,2,6,12,30,240,140,840,3780,15120,2772,221760, 12012,960960,9266400,10810800,218790,7351344000, 923780,16761064320,3259095840,3910915008,16224936, 41977154419200,2028117000,249864014400] |