n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | 3 |
4 | -18 |
5 | 60 |
6 | -60 |
7 | -1890 |
8 | 31472 |
9 | -319032 |
10 | 2369280 |
11 | -6374280 |
12 | -209401368 |
13 | 5594400240 |
14 | -90523285944 |
15 | 1016295254520 |
16 | -3922383447232 |
17 | -184920315173888 |
18 | 6878045401558272 |
19 | -151394798389814208 |
[1,0,-1,3,-18,60,-60,-1890,31472,-319032,2369280, -6374280,-209401368,5594400240,-90523285944, 1016295254520,-3922383447232,-184920315173888, 6878045401558272,-151394798389814208] |