n | a(n) |
---|---|
1 | 1 |
2 | -3 |
3 | 9 |
4 | -27 |
5 | 78 |
6 | -219 |
7 | 591 |
8 | -1500 |
9 | 3420 |
10 | -6153 |
11 | 3315 |
12 | 44466 |
13 | -324276 |
14 | 1627002 |
15 | -7069893 |
16 | 28345875 |
17 | -107618916 |
18 | 391749108 |
19 | -1375531170 |
20 | 4669215090 |
21 | -15311251593 |
22 | 48316101369 |
23 | -145501913850 |
24 | 411323278248 |
25 | -1053727809204 |
26 | 2226156968586 |
27 | -2433380638410 |
28 | -10543933246791 |
[1,-3,9,-27,78,-219,591,-1500,3420,-6153,3315, 44466,-324276,1627002,-7069893,28345875, -107618916,391749108,-1375531170,4669215090, -15311251593,48316101369,-145501913850, 411323278248,-1053727809204,2226156968586, -2433380638410,-10543933246791] |