n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | -2 |
7 | 4 |
8 | -3 |
9 | 4 |
10 | -7 |
11 | 14 |
12 | -21 |
13 | 30 |
14 | -38 |
15 | 50 |
16 | -79 |
17 | 128 |
18 | -190 |
19 | 286 |
20 | -419 |
21 | 598 |
22 | -895 |
23 | 1386 |
24 | -2121 |
25 | 3178 |
26 | -4733 |
27 | 7122 |
28 | -10796 |
29 | 16414 |
30 | -25011 |
31 | 38056 |
32 | -57722 |
33 | 87568 |
34 | -133308 |
35 | 203618 |
36 | -311318 |
37 | 475536 |
38 | -726069 |
39 | 1109718 |
40 | -1698185 |
41 | 2601166 |
42 | -3987305 |
43 | 6114666 |
44 | -9378656 |
45 | 14389676 |
[1,1,1,1,2,-2,4,-3,4,-7,14,-21,30,-38,50,-79,128, -190,286,-419,598,-895,1386,-2121,3178,-4733,7122, -10796,16414,-25011,38056,-57722,87568,-133308, 203618,-311318,475536,-726069,1109718,-1698185, 2601166,-3987305,6114666,-9378656,14389676] |