n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 48 |
6 | 96 |
7 | 1152 |
8 | 2304 |
9 | 276480 |
10 | 552960 |
11 | 6635520 |
12 | 13271040 |
13 | 33443020800 |
14 | 66886041600 |
15 | 802632499200 |
16 | 1605264998400 |
17 | 385263599616000 |
18 | 770527199232000 |
19 | 194172854206464000 |
20 | 388345708412928000 |
21 | 512616335105064960000 |
22 | 1025232670210129920000 |
[1,1,2,4,48,96,1152,2304,276480,552960,6635520, 13271040,33443020800,66886041600,802632499200, 1605264998400,385263599616000,770527199232000, 194172854206464000,388345708412928000, 512616335105064960000,1025232670210129920000] |