n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 6 |
3 | 1 |
4 | -12 |
5 | 30 |
6 | -1 |
7 | 18 |
8 | -90 |
9 | 140 |
10 | 1 |
11 | -24 |
12 | 180 |
13 | -560 |
14 | 630 |
15 | -1 |
16 | 30 |
17 | -300 |
18 | 1400 |
19 | -3150 |
20 | 2772 |
21 | 1 |
22 | -36 |
23 | 450 |
24 | -2800 |
25 | 9450 |
26 | -16632 |
27 | 12012 |
28 | -1 |
29 | 42 |
30 | -630 |
31 | 4900 |
32 | -22050 |
33 | 58212 |
34 | -84084 |
35 | 51480 |
36 | 1 |
37 | -48 |
38 | 840 |
39 | -7840 |
40 | 44100 |
41 | -155232 |
42 | 336336 |
43 | -411840 |
44 | 218790 |
[1,-1,6,1,-12,30,-1,18,-90,140,1,-24,180,-560,630, -1,30,-300,1400,-3150,2772,1,-36,450,-2800,9450, -16632,12012,-1,42,-630,4900,-22050,58212,-84084, 51480,1,-48,840,-7840,44100,-155232,336336, -411840,218790] |