n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -2 |
3 | 9 |
4 | -56 |
5 | 425 |
6 | -3726 |
7 | 36652 |
8 | -397440 |
9 | 4695489 |
10 | -59941550 |
11 | 821711605 |
12 | -12037503384 |
13 | 187689245588 |
14 | -3104186515976 |
15 | 54295661153700 |
16 | -1001685184237056 |
17 | 19444296845046033 |
18 | -396260414466644574 |
19 | 8460628832978195683 |
20 | -188898511962856879400 |
[1,1,-2,9,-56,425,-3726,36652,-397440,4695489, -59941550,821711605,-12037503384,187689245588, -3104186515976,54295661153700,-1001685184237056, 19444296845046033,-396260414466644574, 8460628832978195683,-188898511962856879400] |