n | a(n) |
---|---|
1 | 0 |
2 | 24 |
3 | 192 |
4 | 1248 |
5 | 7680 |
6 | 46464 |
7 | 279552 |
8 | 1678848 |
9 | 10076160 |
10 | 60463104 |
11 | 362790912 |
12 | 2176770048 |
13 | 13060669440 |
14 | 78364114944 |
15 | 470184886272 |
16 | 2821109710848 |
17 | 16926659051520 |
18 | 101559955881984 |
19 | 609359738437632 |
20 | 3656158436917248 |
21 | 21936950634086400 |
22 | 131621703829684224 |
[0,24,192,1248,7680,46464,279552,1678848,10076160, 60463104,362790912,2176770048,13060669440, 78364114944,470184886272,2821109710848, 16926659051520,101559955881984,609359738437632, 3656158436917248,21936950634086400, 131621703829684224] |