n | a(n) |
---|---|
1 | -1 |
2 | 2 |
3 | 1 |
4 | -6 |
5 | -6 |
6 | -1 |
7 | 24 |
8 | 36 |
9 | 12 |
10 | 1 |
11 | -120 |
12 | -240 |
13 | -120 |
14 | -20 |
15 | -1 |
16 | 720 |
17 | 1800 |
18 | 1200 |
19 | 300 |
20 | 30 |
21 | 1 |
22 | -5040 |
23 | -15120 |
24 | -12600 |
25 | -4200 |
26 | -630 |
27 | -42 |
28 | -1 |
29 | 40320 |
30 | 141120 |
31 | 141120 |
32 | 58800 |
33 | 11760 |
34 | 1176 |
35 | 56 |
36 | 1 |
37 | -362880 |
38 | -1451520 |
39 | -1693440 |
40 | -846720 |
41 | -211680 |
42 | -28224 |
43 | -2016 |
44 | -72 |
45 | -1 |
46 | 3628800 |
47 | 16329600 |
48 | 21772800 |
49 | 12700800 |
[-1,2,1,-6,-6,-1,24,36,12,1,-120,-240,-120,-20,-1, 720,1800,1200,300,30,1,-5040,-15120,-12600,-4200, -630,-42,-1,40320,141120,141120,58800,11760,1176, 56,1,-362880,-1451520,-1693440,-846720,-211680, -28224,-2016,-72,-1,3628800,16329600,21772800, 12700800] |