n | a(n) |
---|---|
1 | 1 |
2 | -2 |
3 | 2 |
4 | -32 |
5 | 56 |
6 | -416 |
7 | 3184 |
8 | -85504 |
9 | 309760 |
10 | -4087552 |
11 | 48104704 |
12 | -546922496 |
13 | 10591523840 |
14 | -194387924992 |
15 | 3133776259072 |
16 | -129880886411264 |
17 | 1249919350046720 |
18 | -29073986250604544 |
19 | 624022403933077504 |
20 | -15137719350365519872 |
21 | 381632216575339397120 |
22 | -11149155036737662615552 |
[1,-2,2,-32,56,-416,3184,-85504,309760,-4087552, 48104704,-546922496,10591523840,-194387924992, 3133776259072,-129880886411264,1249919350046720, -29073986250604544,624022403933077504, -15137719350365519872,381632216575339397120, -11149155036737662615552] |