n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | -6 |
4 | -15 |
5 | 60 |
6 | 1023 |
7 | 6062 |
8 | -9247 |
9 | -652680 |
10 | -7332289 |
11 | -13792350 |
12 | 994947921 |
13 | 19248140340 |
14 | 119312444223 |
15 | -2747842718122 |
16 | -91993600741951 |
17 | -1070543140984080 |
18 | 10423240065585023 |
19 | 710021632610736714 |
[1,0,-1,-6,-15,60,1023,6062,-9247,-652680, -7332289,-13792350,994947921,19248140340, 119312444223,-2747842718122,-91993600741951, -1070543140984080,10423240065585023, 710021632610736714] |