n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -4 |
3 | -18 |
4 | -32 |
5 | -75 |
6 | 1188 |
7 | 2205 |
8 | 7936 |
9 | 19278 |
10 | 49500 |
11 | 87120 |
12 | 185760 |
13 | 312988 |
14 | 574868 |
15 | -10481175 |
16 | -15271936 |
17 | -46022672 |
18 | -98470404 |
19 | -230150496 |
20 | -440484000 |
21 | -932930208 |
22 | -1572331596 |
23 | -2940575576 |
24 | -4940815104 |
25 | -8508211250 |
26 | -13542949524 |
27 | -22406625648 |
[1,-1,-4,-18,-32,-75,1188,2205,7936,19278,49500, 87120,185760,312988,574868,-10481175,-15271936, -46022672,-98470404,-230150496,-440484000, -932930208,-1572331596,-2940575576,-4940815104, -8508211250,-13542949524,-22406625648] |