n | a(n) |
---|---|
4 | 1 |
5 | 48 |
6 | 4320 |
7 | 638400 |
8 | 143216640 |
9 | 45912303360 |
10 | 20064844800000 |
11 | 11517786190310400 |
12 | 8429182295998464000 |
13 | 7676025035655591014400 |
14 | 8524944488872455752908800 |
15 | 11353372433362159200000000000 |
16 | 17873609218353722680651284480000 |
17 | 32855463684946243953215776972800000 |
18 | 69770867798960701944675685147607040000 |
[1,48,4320,638400,143216640,45912303360, 20064844800000,11517786190310400, 8429182295998464000,7676025035655591014400, 8524944488872455752908800, 11353372433362159200000000000, 17873609218353722680651284480000, 32855463684946243953215776972800000, 69770867798960701944675685147607040000] |