n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | -9 |
4 | 48 |
5 | 350 |
6 | -11160 |
7 | 73010 |
8 | 2607360 |
9 | -84724380 |
10 | 274118400 |
11 | 58934005900 |
12 | -1878039820800 |
13 | -11920073789000 |
14 | 2984939450438400 |
15 | -86257610003799000 |
16 | -2337484592701440000 |
17 | 281472063119891306000 |
18 | -6445251832278924288000 |
[1,1,0,-9,48,350,-11160,73010,2607360,-84724380, 274118400,58934005900,-1878039820800, -11920073789000,2984939450438400, -86257610003799000,-2337484592701440000, 281472063119891306000,-6445251832278924288000] |