n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 12 |
4 | 36 |
5 | 144 |
6 | 720 |
7 | 3600 |
8 | 25200 |
9 | 176400 |
10 | 1587600 |
11 | 17463600 |
12 | 192099600 |
13 | 2497294800 |
14 | 32464832400 |
15 | 551902150800 |
16 | 9382336563600 |
17 | 178264394708400 |
18 | 3387023499459600 |
19 | 77901540487570800 |
20 | 1791735431214128400 |
21 | 44793385780353210000 |
22 | 1299008187630243090000 |
[1,2,4,12,36,144,720,3600,25200,176400,1587600, 17463600,192099600,2497294800,32464832400, 551902150800,9382336563600,178264394708400, 3387023499459600,77901540487570800, 1791735431214128400,44793385780353210000, 1299008187630243090000] |