n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 4 |
7 | 12 |
8 | 72 |
9 | 576 |
10 | 12096 |
11 | 653184 |
12 | 114960384 |
13 | 132779243520 |
14 | 1269104009564160 |
15 | 258206825369885736960 |
16 | 2850769895485902112338739200 |
17 | 5543726888202115028458043149398835200 |
18 | 12452794281642743516125592836044191777302983475200 |
[1,1,1,1,2,4,12,72,576,12096,653184,114960384, 132779243520,1269104009564160, 258206825369885736960, 2850769895485902112338739200, 5543726888202115028458043149398835200, 12452794281642743516125592836044191777302983475200\ ] |