n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | 2 |
4 | -3 |
5 | 1 |
6 | 6 |
7 | -12 |
8 | 7 |
9 | -1 |
10 | 24 |
11 | -60 |
12 | 50 |
13 | -15 |
14 | 1 |
15 | 120 |
16 | -360 |
17 | 390 |
18 | -180 |
19 | 31 |
20 | -1 |
21 | 720 |
22 | -2520 |
23 | 3360 |
24 | -2100 |
25 | 602 |
26 | -63 |
27 | 1 |
28 | 5040 |
29 | -20160 |
30 | 31920 |
31 | -25200 |
32 | 10206 |
33 | -1932 |
34 | 127 |
35 | -1 |
36 | 40320 |
37 | -181440 |
38 | 332640 |
39 | -317520 |
40 | 166824 |
41 | -46620 |
42 | 6050 |
43 | -255 |
44 | 1 |
45 | 362880 |
46 | -1814400 |
47 | 3780000 |
48 | -4233600 |
49 | 2739240 |
50 | -1020600 |
51 | 204630 |
52 | -18660 |
53 | 511 |
54 | -1 |
[1,1,-1,2,-3,1,6,-12,7,-1,24,-60,50,-15,1,120, -360,390,-180,31,-1,720,-2520,3360,-2100,602,-63, 1,5040,-20160,31920,-25200,10206,-1932,127,-1, 40320,-181440,332640,-317520,166824,-46620,6050, -255,1,362880,-1814400,3780000,-4233600,2739240, -1020600,204630,-18660,511,-1] |