n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | -1 |
4 | 1 |
5 | 2 |
6 | 1 |
7 | -3 |
8 | -6 |
9 | 1 |
10 | 24 |
11 | 1 |
12 | -10 |
13 | 30 |
14 | -120 |
15 | 1 |
16 | 720 |
17 | 1 |
18 | -35 |
19 | -630 |
20 | -5040 |
21 | 1 |
22 | 560 |
23 | 40320 |
24 | 1 |
25 | -126 |
26 | 22680 |
27 | -362880 |
28 | 1 |
29 | 3628800 |
30 | 1 |
31 | -462 |
32 | 11550 |
33 | -92400 |
34 | -1247400 |
35 | -39916800 |
36 | 1 |
37 | 479001600 |
38 | 1 |
39 | -1716 |
40 | 97297200 |
41 | -6227020800 |
[1,1,-1,1,2,1,-3,-6,1,24,1,-10,30,-120,1,720,1, -35,-630,-5040,1,560,40320,1,-126,22680,-362880,1, 3628800,1,-462,11550,-92400,-1247400,-39916800,1, 479001600,1,-1716,97297200,-6227020800] |