n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | -12 |
5 | 60 |
6 | -210 |
7 | 1260 |
8 | -4368 |
9 | -42336 |
10 | 833880 |
11 | -9944880 |
12 | 109031208 |
13 | -998835552 |
14 | 5256888000 |
15 | 57628902240 |
16 | -2552409700608 |
17 | 53611141985664 |
18 | -880205240332224 |
19 | 12318269451041664 |
20 | -115115298914746752 |
[1,0,0,0,-12,60,-210,1260,-4368,-42336,833880, -9944880,109031208,-998835552,5256888000, 57628902240,-2552409700608,53611141985664, -880205240332224,12318269451041664, -115115298914746752] |