n | a(n) |
---|---|
1 | 1 |
2 | -1 |
3 | 2 |
4 | -6 |
5 | 21 |
6 | -79 |
7 | 311 |
8 | -1266 |
9 | 5289 |
10 | -22553 |
11 | 97763 |
12 | -429527 |
13 | 1908452 |
14 | -8560532 |
15 | 38713510 |
16 | -176318081 |
17 | 808018789 |
18 | -3723242051 |
19 | 17239848937 |
20 | -80174546765 |
21 | 374319144257 |
22 | -1753833845882 |
23 | 8243964424236 |
24 | -38865436663306 |
[1,-1,2,-6,21,-79,311,-1266,5289,-22553,97763, -429527,1908452,-8560532,38713510,-176318081, 808018789,-3723242051,17239848937,-80174546765, 374319144257,-1753833845882,8243964424236, -38865436663306] |