n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | -531440 |
4 | 1 |
5 | 244140626 |
6 | -531440 |
7 | -13841287200 |
8 | 1 |
9 | 282429005041 |
10 | 244140626 |
11 | -3138428376720 |
12 | -531440 |
13 | 23298085122482 |
14 | -13841287200 |
15 | -129746094281440 |
16 | 1 |
17 | 582622237229762 |
18 | 282429005041 |
19 | -2213314919066160 |
20 | 244140626 |
21 | 7355813669568000 |
[1,1,-531440,1,244140626,-531440,-13841287200,1, 282429005041,244140626,-3138428376720,-531440, 23298085122482,-13841287200,-129746094281440,1, 582622237229762,282429005041,-2213314919066160, 244140626,7355813669568000] |