n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 240 |
6 | 4320 |
7 | 120960 |
8 | 9676800 |
9 | 1567641600 |
10 | 438939648000 |
11 | 386266890240000 |
12 | 750902834626560000 |
13 | 2733286318040678400000 |
14 | 33674087438261157888000000 |
15 | 981936389699695364014080000000 |
[1,1,2,6,24,240,4320,120960,9676800,1567641600, 438939648000,386266890240000,750902834626560000, 2733286318040678400000,33674087438261157888000000, 981936389699695364014080000000] |