n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 12 |
5 | 60 |
6 | 10 |
7 | 80 |
8 | 720 |
9 | 7920 |
10 | 55440 |
11 | 55440 |
12 | 18480 |
13 | 18480 |
14 | 18480 |
15 | 425040 |
16 | 5525520 |
17 | 160240080 |
18 | 53413360 |
19 | 160240080 |
20 | 160240080 |
21 | 480720240 |
22 | 480720240 |
23 | 19709529840 |
24 | 19709529840 |
25 | 39419059680 |
26 | 197095298400 |
27 | 3350620072800 |
[1,2,4,12,60,10,80,720,7920,55440,55440,18480, 18480,18480,425040,5525520,160240080,53413360, 160240080,160240080,480720240,480720240, 19709529840,19709529840,39419059680,197095298400, 3350620072800] |