n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 12 |
4 | 60 |
5 | 120 |
6 | 840 |
7 | 2520 |
8 | 12600 |
9 | 239400 |
10 | 2633400 |
11 | 5266800 |
12 | 15800400 |
13 | 458211600 |
14 | 7789597200 |
15 | 288215096400 |
16 | 3746796253200 |
17 | 26227573772400 |
18 | 131137868862000 |
19 | 1049102950896000 |
20 | 24129367870608000 |
21 | 1906220061778032000 |
22 | 78155022532899312000 |
23 | 6955797005428038768000 |
[1,3,12,60,120,840,2520,12600,239400,2633400, 5266800,15800400,458211600,7789597200, 288215096400,3746796253200,26227573772400, 131137868862000,1049102950896000, 24129367870608000,1906220061778032000, 78155022532899312000,6955797005428038768000] |