n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 2 |
6 | -3 |
7 | 4 |
8 | -4 |
9 | 4 |
10 | -10 |
11 | 14 |
12 | -25 |
13 | 30 |
14 | -48 |
15 | 48 |
16 | -86 |
17 | 128 |
18 | -192 |
19 | 286 |
20 | -470 |
21 | 578 |
22 | -1000 |
23 | 1386 |
24 | -2423 |
25 | 3172 |
26 | -5198 |
27 | 7102 |
28 | -11994 |
29 | 16414 |
30 | -25820 |
31 | 38056 |
32 | -61444 |
33 | 86658 |
34 | -141564 |
35 | 203396 |
36 | -324640 |
37 | 475536 |
38 | -767110 |
39 | 1100728 |
40 | -1810752 |
41 | 2601166 |
42 | -4118166 |
43 | 6114666 |
[1,0,1,0,2,-3,4,-4,4,-10,14,-25,30,-48,48,-86,128, -192,286,-470,578,-1000,1386,-2423,3172,-5198, 7102,-11994,16414,-25820,38056,-61444,86658, -141564,203396,-324640,475536,-767110,1100728, -1810752,2601166,-4118166,6114666] |