n | a(n) |
---|---|
2 | 12 |
3 | 48 |
4 | 240 |
5 | 1440 |
6 | 8640 |
7 | 60480 |
8 | 604800 |
9 | 5443200 |
10 | 59875200 |
11 | 718502400 |
12 | 9340531200 |
13 | 124540416000 |
14 | 1743565824000 |
15 | 29640619008000 |
16 | 502146957312000 |
17 | 8536498274304000 |
18 | 162193467211776000 |
19 | 3406062811447296000 |
20 | 68121256228945920000 |
21 | 1498667637036810240000 |
[12,48,240,1440,8640,60480,604800,5443200, 59875200,718502400,9340531200,124540416000, 1743565824000,29640619008000,502146957312000, 8536498274304000,162193467211776000, 3406062811447296000,68121256228945920000, 1498667637036810240000] |