n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 3 |
4 | -8 |
5 | 26 |
6 | -46 |
7 | -542 |
8 | 12272 |
9 | -196204 |
10 | 2970284 |
11 | -46125412 |
12 | 747689152 |
13 | -12796612984 |
14 | 231568711464 |
15 | -4435090726232 |
16 | 89781803413632 |
17 | -1918433012222064 |
18 | 43187041330469744 |
19 | -1022364892192828752 |
[0,1,-1,3,-8,26,-46,-542,12272,-196204,2970284, -46125412,747689152,-12796612984,231568711464, -4435090726232,89781803413632,-1918433012222064, 43187041330469744,-1022364892192828752] |