n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 30 |
4 | 336 |
5 | 5040 |
6 | 95040 |
7 | 2162160 |
8 | 57657600 |
9 | 1764322560 |
10 | 60949324800 |
11 | 2346549004800 |
12 | 99638080819200 |
13 | 4626053752320000 |
14 | 233153109116928000 |
15 | 12677700308232960000 |
16 | 739781100339240960000 |
17 | 46113021921146019840000 |
[1,1,4,30,336,5040,95040,2162160,57657600, 1764322560,60949324800,2346549004800, 99638080819200,4626053752320000, 233153109116928000,12677700308232960000, 739781100339240960000,46113021921146019840000] |