n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 4 |
3 | -6 |
4 | 19 |
5 | -140 |
6 | 910 |
7 | -5250 |
8 | 39925 |
9 | -414360 |
10 | 4244200 |
11 | -42242750 |
12 | 500292775 |
13 | -7036001700 |
14 | 98944220050 |
15 | -1395690728250 |
16 | 22347132003625 |
17 | -399376247582000 |
18 | 7158271817183500 |
19 | -130527261318021750 |
[1,0,4,-6,19,-140,910,-5250,39925,-414360,4244200, -42242750,500292775,-7036001700,98944220050, -1395690728250,22347132003625,-399376247582000, 7158271817183500,-130527261318021750] |