n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -3 |
3 | 9 |
4 | -87 |
5 | 705 |
6 | -10395 |
7 | 144585 |
8 | -2851695 |
9 | 56867265 |
10 | -1413148275 |
11 | 36699287625 |
12 | -1106370671175 |
13 | 35311847796225 |
14 | -1256361047016075 |
15 | 47461118535455625 |
16 | -1950838291460433375 |
17 | 84992806074321770625 |
18 | -3968100259495356859875 |
19 | 195665521053499007135625 |
[1,1,-3,9,-87,705,-10395,144585,-2851695,56867265, -1413148275,36699287625,-1106370671175, 35311847796225,-1256361047016075, 47461118535455625,-1950838291460433375, 84992806074321770625,-3968100259495356859875, 195665521053499007135625] |