n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | -2 |
4 | -4 |
5 | -4 |
6 | 24 |
7 | 176 |
8 | 272 |
9 | -1712 |
10 | -14528 |
11 | -66912 |
12 | 181312 |
13 | 4737344 |
14 | 20265088 |
15 | -53926656 |
16 | -1771263744 |
17 | -18559434496 |
18 | 4388386816 |
19 | 1869838374400 |
20 | 16325400792064 |
21 | 35429689535488 |
22 | -1796402984175616 |
23 | -36301265658269696 |
[1,1,0,-2,-4,-4,24,176,272,-1712,-14528,-66912, 181312,4737344,20265088,-53926656,-1771263744, -18559434496,4388386816,1869838374400, 16325400792064,35429689535488,-1796402984175616, -36301265658269696] |