n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | -4 |
5 | -30 |
6 | 294 |
7 | 3780 |
8 | -7904 |
9 | -444528 |
10 | 78840 |
11 | 99657360 |
12 | 539299848 |
13 | -27852945120 |
14 | -361237078944 |
15 | 10124338180320 |
16 | 258341121976320 |
17 | -4020500134465920 |
18 | -205187357182405824 |
19 | 1330097523844832640 |
20 | 186823640933648588160 |
21 | 500469438126120583680 |
[1,0,2,3,-4,-30,294,3780,-7904,-444528,78840, 99657360,539299848,-27852945120,-361237078944, 10124338180320,258341121976320,-4020500134465920, -205187357182405824,1330097523844832640, 186823640933648588160,500469438126120583680] |