n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 0 |
4 | 6 |
5 | 570 |
6 | 73620 |
7 | 13675620 |
8 | 3540401760 |
9 | 1229855690952 |
10 | 554518177819200 |
11 | 315663337023994080 |
12 | 221736991132524890880 |
13 | 188570961922698640977120 |
14 | 191056359142016559185938944 |
15 | 227491517759156008014967128000 |
[1,0,0,6,570,73620,13675620,3540401760, 1229855690952,554518177819200,315663337023994080, 221736991132524890880,188570961922698640977120, 191056359142016559185938944, 227491517759156008014967128000] |