n | a(n) |
---|---|
0 | -2 |
1 | -1 |
2 | 1 |
3 | 2 |
4 | -5 |
5 | -16 |
6 | 61 |
7 | 272 |
8 | -1385 |
9 | -7936 |
10 | 50521 |
11 | 353792 |
12 | -2702765 |
13 | -22368256 |
14 | 199360981 |
15 | 1903757312 |
16 | -19391512145 |
17 | -209865342976 |
18 | 2404879675441 |
19 | 29088885112832 |
20 | -370371188237525 |
21 | -4951498053124096 |
22 | 69348874393137901 |
[-2,-1,1,2,-5,-16,61,272,-1385,-7936,50521,353792, -2702765,-22368256,199360981,1903757312, -19391512145,-209865342976,2404879675441, 29088885112832,-370371188237525,-4951498053124096, 69348874393137901] |