n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | 2 |
4 | -4 |
5 | 2 |
6 | 6 |
7 | -18 |
8 | 18 |
9 | -6 |
10 | 24 |
11 | -96 |
12 | 144 |
13 | -96 |
14 | 24 |
15 | 120 |
16 | -600 |
17 | 1200 |
18 | -1200 |
19 | 600 |
20 | -120 |
21 | 720 |
22 | -4320 |
23 | 10800 |
24 | -14400 |
25 | 10800 |
26 | -4320 |
27 | 720 |
28 | 5040 |
29 | -35280 |
30 | 105840 |
31 | -176400 |
32 | 176400 |
33 | -105840 |
34 | 35280 |
35 | -5040 |
36 | 40320 |
37 | -322560 |
38 | 1128960 |
39 | -2257920 |
40 | 2822400 |
41 | -2257920 |
42 | 1128960 |
43 | -322560 |
44 | 40320 |
45 | 362880 |
46 | -3265920 |
[1,1,-1,2,-4,2,6,-18,18,-6,24,-96,144,-96,24,120, -600,1200,-1200,600,-120,720,-4320,10800,-14400, 10800,-4320,720,5040,-35280,105840,-176400,176400, -105840,35280,-5040,40320,-322560,1128960, -2257920,2822400,-2257920,1128960,-322560,40320, 362880,-3265920] |