n | a(n) |
---|---|
1 | 1 |
2 | -1 |
3 | 1 |
4 | 1 |
5 | -3 |
6 | 2 |
7 | 3 |
8 | 3 |
9 | -12 |
10 | 6 |
11 | -2 |
12 | 30 |
13 | 8 |
14 | -60 |
15 | 24 |
16 | -240 |
17 | 240 |
18 | 240 |
19 | 0 |
20 | -360 |
21 | 120 |
22 | -3900 |
23 | -540 |
24 | 4800 |
25 | 1800 |
26 | -360 |
27 | -2520 |
28 | 720 |
29 | -15120 |
30 | -112560 |
31 | 65520 |
32 | 70560 |
33 | 12600 |
34 | -5880 |
35 | -20160 |
36 | 5040 |
37 | 2169888 |
38 | -4284000 |
39 | -756672 |
40 | 2076480 |
41 | 945504 |
42 | 70560 |
43 | -80640 |
44 | -181440 |
45 | 40320 |
[1,-1,1,1,-3,2,3,3,-12,6,-2,30,8,-60,24,-240,240, 240,0,-360,120,-3900,-540,4800,1800,-360,-2520, 720,-15120,-112560,65520,70560,12600,-5880,-20160, 5040,2169888,-4284000,-756672,2076480,945504, 70560,-80640,-181440,40320] |