n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 34 |
3 | 378 |
4 | 3186 |
5 | 25620 |
6 | 214410 |
7 | 1930080 |
8 | 18881250 |
9 | 200907060 |
10 | 2318843370 |
11 | 28914797640 |
12 | 387867845250 |
13 | 5573855579340 |
14 | 85476008430090 |
15 | 1393770581296320 |
16 | 24086416578328290 |
17 | 439832565550644900 |
18 | 8463528886854858090 |
19 | 171191360282164168440 |
20 | 3631513434281720800770 |
[0,1,34,378,3186,25620,214410,1930080,18881250, 200907060,2318843370,28914797640,387867845250, 5573855579340,85476008430090,1393770581296320, 24086416578328290,439832565550644900, 8463528886854858090,171191360282164168440, 3631513434281720800770] |