n | a(n) |
---|---|
0 | 1 |
1 | 54 |
2 | 1890 |
3 | 55440 |
4 | 1496880 |
5 | 38918880 |
6 | 998917920 |
7 | 25686460800 |
8 | 667847980800 |
9 | 17660868825600 |
10 | 476843458291200 |
11 | 13178219210956800 |
12 | 373382877643776000 |
13 | 10856825211488256000 |
14 | 324153781314435072000 |
[1,54,1890,55440,1496880,38918880,998917920, 25686460800,667847980800,17660868825600, 476843458291200,13178219210956800, 373382877643776000,10856825211488256000, 324153781314435072000] |