n | a(n) |
---|---|
0 | 1 |
1 | -4 |
2 | 1 |
3 | 20 |
4 | -9 |
5 | 1 |
6 | -120 |
7 | 74 |
8 | -15 |
9 | 1 |
10 | 840 |
11 | -638 |
12 | 179 |
13 | -22 |
14 | 1 |
15 | -6720 |
16 | 5944 |
17 | -2070 |
18 | 355 |
19 | -30 |
20 | 1 |
21 | 60480 |
22 | -60216 |
23 | 24574 |
24 | -5265 |
25 | 625 |
26 | -39 |
27 | 1 |
28 | -604800 |
29 | 662640 |
30 | -305956 |
31 | 77224 |
32 | -11515 |
33 | 1015 |
34 | -49 |
35 | 1 |
36 | 6652800 |
37 | -7893840 |
38 | 4028156 |
39 | -1155420 |
40 | 203889 |
[1,-4,1,20,-9,1,-120,74,-15,1,840,-638,179,-22,1, -6720,5944,-2070,355,-30,1,60480,-60216,24574, -5265,625,-39,1,-604800,662640,-305956,77224, -11515,1015,-49,1,6652800,-7893840,4028156, -1155420,203889] |