n | a(n) |
---|---|
1 | 1 |
2 | -2 |
3 | -2 |
4 | -16 |
5 | 14 |
6 | 64 |
7 | -484 |
8 | -2048 |
9 | 3798 |
10 | -7168 |
11 | 96292 |
12 | 131072 |
13 | -1247476 |
14 | 3964928 |
15 | -27170632 |
16 | -67108864 |
17 | 220816742 |
18 | -497811456 |
19 | 993377620 |
20 | -3758096384 |
21 | 38457826404 |
22 | -201938960384 |
23 | 1217833409416 |
24 | 1099511627776 |
25 | -4275253627140 |
[1,-2,-2,-16,14,64,-484,-2048,3798,-7168,96292, 131072,-1247476,3964928,-27170632,-67108864, 220816742,-497811456,993377620,-3758096384, 38457826404,-201938960384,1217833409416, 1099511627776,-4275253627140] |