n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 80 |
3 | 560 |
4 | 3584 |
5 | 21504 |
6 | 122880 |
7 | 675840 |
8 | 3604480 |
9 | 18743296 |
10 | 95420416 |
11 | 477102080 |
12 | 2348810240 |
13 | 11408506880 |
14 | 54760833024 |
15 | 260113956864 |
16 | 1224065679360 |
17 | 5712306503680 |
18 | 26456998543360 |
19 | 121702193299456 |
[1,10,80,560,3584,21504,122880,675840,3604480, 18743296,95420416,477102080,2348810240, 11408506880,54760833024,260113956864, 1224065679360,5712306503680,26456998543360, 121702193299456] |