n | a(n) |
---|---|
0 | 1 |
1 | -2 |
2 | 5 |
3 | -17 |
4 | 74 |
5 | -394 |
6 | 2484 |
7 | -18108 |
8 | 149904 |
9 | -1389456 |
10 | 14257440 |
11 | -160460640 |
12 | 1965444480 |
13 | -26029779840 |
14 | 370643938560 |
15 | -5646837369600 |
16 | 91657072281600 |
17 | -1579093018675200 |
18 | 28779361764249600 |
19 | -553210247226470400 |
[1,-2,5,-17,74,-394,2484,-18108,149904,-1389456, 14257440,-160460640,1965444480,-26029779840, 370643938560,-5646837369600,91657072281600, -1579093018675200,28779361764249600, -553210247226470400] |