n | a(n) |
---|---|
0 | 1 |
1 | 8 |
2 | 90 |
3 | 1344 |
4 | 25200 |
5 | 570240 |
6 | 15135120 |
7 | 461260800 |
8 | 15878903040 |
9 | 609493248000 |
10 | 25812039052800 |
11 | 1195656969830400 |
12 | 60138698780160000 |
13 | 3264143527636992000 |
14 | 190165504623494400000 |
15 | 11836497605427855360000 |
16 | 783921372659482337280000 |
[1,8,90,1344,25200,570240,15135120,461260800, 15878903040,609493248000,25812039052800, 1195656969830400,60138698780160000, 3264143527636992000,190165504623494400000, 11836497605427855360000,783921372659482337280000] |