n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | -7 |
4 | 5 |
5 | 31 |
6 | -61 |
7 | -127 |
8 | 1385 |
9 | 511 |
10 | -50521 |
11 | -1414477 |
12 | 2702765 |
13 | 8191 |
14 | -199360981 |
15 | -118518239 |
16 | 19391512145 |
17 | 5749691557 |
18 | -2404879675441 |
19 | -91546277357 |
20 | 370371188237525 |
21 | 162912981133 |
22 | -69348874393137901 |
23 | -1982765468311237 |
24 | 15514534163557086905 |
25 | 22076500342261 |
[1,1,-1,-7,5,31,-61,-127,1385,511,-50521,-1414477, 2702765,8191,-199360981,-118518239,19391512145, 5749691557,-2404879675441,-91546277357, 370371188237525,162912981133,-69348874393137901, -1982765468311237,15514534163557086905, 22076500342261] |