n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 0 |
3 | 5 |
4 | 24 |
5 | 209 |
6 | 2120 |
7 | 25829 |
8 | 365456 |
9 | 5895105 |
10 | 106794992 |
11 | 2147006949 |
12 | 47436635752 |
13 | 1142570789073 |
14 | 29797622256376 |
15 | 836527783016197 |
16 | 25153234375160992 |
17 | 806519154686509057 |
18 | 27470342073410272608 |
19 | 990496662138073867333 |
20 | 37692249497898323450424 |
[0,1,0,5,24,209,2120,25829,365456,5895105, 106794992,2147006949,47436635752,1142570789073, 29797622256376,836527783016197,25153234375160992, 806519154686509057,27470342073410272608, 990496662138073867333,37692249497898323450424] |