n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 40 |
8 | 3192 |
9 | 119180 |
10 | 2119176 |
11 | 23636352 |
12 | 186506000 |
13 | 1131544008 |
14 | 5613017128 |
15 | 23670094984 |
16 | 87463182432 |
17 | 289367715488 |
18 | 872345119896 |
19 | 2427609997716 |
20 | 6305272324272 |
[0,0,0,0,0,0,40,3192,119180,2119176,23636352, 186506000,1131544008,5613017128,23670094984, 87463182432,289367715488,872345119896, 2427609997716,6305272324272] |