n | a(n) |
---|---|
1 | 1 |
2 | -2 |
3 | 12 |
4 | -6 |
5 | -120 |
6 | 120 |
7 | -24 |
8 | 1680 |
9 | -2520 |
10 | 360 |
11 | 720 |
12 | -120 |
13 | -30240 |
14 | 60480 |
15 | -20160 |
16 | -20160 |
17 | 5040 |
18 | 5040 |
19 | -720 |
20 | 665280 |
21 | -1663200 |
22 | 907200 |
23 | 604800 |
24 | -60480 |
25 | -362880 |
26 | -181440 |
27 | 20160 |
28 | 40320 |
29 | 40320 |
30 | -5040 |
31 | -17297280 |
32 | 51891840 |
33 | -39916800 |
34 | -19958400 |
35 | 6652800 |
36 | 19958400 |
37 | 6652800 |
38 | -1814400 |
39 | -1814400 |
40 | -3628800 |
41 | -1814400 |
42 | 362880 |
43 | 362880 |
44 | 362880 |
45 | -40320 |
[1,-2,12,-6,-120,120,-24,1680,-2520,360,720,-120, -30240,60480,-20160,-20160,5040,5040,-720,665280, -1663200,907200,604800,-60480,-362880,-181440, 20160,40320,40320,-5040,-17297280,51891840, -39916800,-19958400,6652800,19958400,6652800, -1814400,-1814400,-3628800,-1814400,362880,362880, 362880,-40320] |