n | a(n) |
---|---|
1 | 1 |
2 | -1 |
3 | 2 |
4 | 2 |
5 | -3 |
6 | 6 |
7 | -6 |
8 | 8 |
9 | -12 |
10 | 24 |
11 | 24 |
12 | -30 |
13 | 40 |
14 | -60 |
15 | 120 |
16 | -120 |
17 | 144 |
18 | -180 |
19 | 240 |
20 | -360 |
21 | 720 |
22 | 720 |
23 | -840 |
24 | 1008 |
25 | -1260 |
26 | 1680 |
27 | -2520 |
28 | 5040 |
29 | -5040 |
30 | 5760 |
31 | -6720 |
32 | 8064 |
33 | -10080 |
34 | 13440 |
35 | -20160 |
36 | 40320 |
37 | 40320 |
38 | -45360 |
39 | 51840 |
40 | -60480 |
41 | 72576 |
42 | -90720 |
43 | 120960 |
44 | -181440 |
45 | 362880 |
46 | -362880 |
47 | 403200 |
48 | -453600 |
49 | 518400 |
50 | -604800 |
[1,-1,2,2,-3,6,-6,8,-12,24,24,-30,40,-60,120,-120, 144,-180,240,-360,720,720,-840,1008,-1260,1680, -2520,5040,-5040,5760,-6720,8064,-10080,13440, -20160,40320,40320,-45360,51840,-60480,72576, -90720,120960,-181440,362880,-362880,403200, -453600,518400,-604800] |