n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 3 |
4 | -10 |
5 | 45 |
6 | -256 |
7 | 1743 |
8 | -13840 |
9 | 125625 |
10 | -1282816 |
11 | 14554683 |
12 | -181649920 |
13 | 2473184805 |
14 | -36478744576 |
15 | 579439207623 |
16 | -9861412096000 |
17 | 179018972217585 |
18 | -3452931391553536 |
19 | 70518070842040563 |
20 | -1520176422094766080 |
[0,1,-1,3,-10,45,-256,1743,-13840,125625,-1282816, 14554683,-181649920,2473184805,-36478744576, 579439207623,-9861412096000,179018972217585, -3452931391553536,70518070842040563, -1520176422094766080] |