n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | 1 |
4 | -1 |
5 | 5 |
6 | -691 |
7 | 7 |
8 | -3617 |
9 | 43867 |
10 | -174611 |
11 | 854513 |
12 | -236364091 |
13 | 8553103 |
14 | -23749461029 |
15 | 8615841276005 |
16 | -7709321041217 |
17 | 2577687858367 |
18 | -26315271553053477373 |
19 | 2929993913841559 |
20 | -261082718496449122051 |
[1,1,-1,1,-1,5,-691,7,-3617,43867,-174611,854513, -236364091,8553103,-23749461029,8615841276005, -7709321041217,2577687858367, -26315271553053477373,2929993913841559, -261082718496449122051] |