n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | -4 |
4 | 9 |
5 | -48 |
6 | 385 |
7 | -2420 |
8 | 17297 |
9 | -170688 |
10 | 1760289 |
11 | -18395012 |
12 | 219987801 |
13 | -2936841776 |
14 | 40948952993 |
15 | -606801250484 |
16 | 9752505856033 |
17 | -166636197964032 |
18 | 2990053004436417 |
19 | -56703580249101188 |
[1,0,1,-4,9,-48,385,-2420,17297,-170688,1760289, -18395012,219987801,-2936841776,40948952993, -606801250484,9752505856033,-166636197964032, 2990053004436417,-56703580249101188] |