n | a(n) |
---|---|
0 | -1 |
1 | 1 |
2 | -1 |
3 | 1 |
4 | -1 |
5 | 1 |
6 | 2 |
7 | -1 |
8 | 2 |
9 | -1 |
10 | 6 |
11 | -4 |
12 | 9 |
13 | -6 |
14 | 1 |
15 | 24 |
16 | -121 |
17 | 264 |
18 | -166 |
19 | 24 |
20 | -1 |
21 | 120 |
22 | -44616 |
23 | 93340 |
24 | -52950 |
25 | 4345 |
26 | -120 |
27 | 1 |
28 | 720 |
29 | -296321796 |
30 | 605003244 |
31 | -321204409 |
32 | 12686988 |
33 | -164746 |
34 | 720 |
35 | -1 |
36 | 5040 |
37 | -49349521382400 |
38 | 99624831647040 |
39 | -51206316902496 |
[-1,1,-1,1,-1,1,2,-1,2,-1,6,-4,9,-6,1,24,-121,264, -166,24,-1,120,-44616,93340,-52950,4345,-120,1, 720,-296321796,605003244,-321204409,12686988, -164746,720,-1,5040,-49349521382400, 99624831647040,-51206316902496] |