n | a(n) |
---|---|
10 | 362880 |
11 | 39916800 |
12 | 2874009600 |
13 | 175394419200 |
14 | 9967384627200 |
15 | 551675124000000 |
16 | 30471021291110400 |
17 | 1703458301210265600 |
18 | 97213825272736972800 |
19 | 5693251850259515942400 |
20 | 343266609438110040883200 |
21 | 21349182724237331665228800 |
22 | 1371132989012608561874534400 |
[362880,39916800,2874009600,175394419200, 9967384627200,551675124000000,30471021291110400, 1703458301210265600,97213825272736972800, 5693251850259515942400,343266609438110040883200, 21349182724237331665228800, 1371132989012608561874534400] |