n | a(n) |
---|---|
0 | 1 |
1 | -2 |
2 | 1 |
3 | -2 |
4 | 4 |
5 | -4 |
6 | 5 |
7 | -6 |
8 | 9 |
9 | -12 |
10 | 13 |
11 | -16 |
12 | 21 |
13 | -26 |
14 | 29 |
15 | -36 |
16 | 46 |
17 | -54 |
18 | 62 |
19 | -74 |
20 | 90 |
21 | -106 |
22 | 122 |
23 | -142 |
24 | 171 |
25 | -200 |
26 | 227 |
27 | -264 |
28 | 311 |
29 | -358 |
30 | 408 |
31 | -470 |
32 | 545 |
33 | -626 |
34 | 709 |
35 | -810 |
36 | 933 |
37 | -1062 |
38 | 1198 |
39 | -1362 |
40 | 1555 |
41 | -1760 |
42 | 1980 |
43 | -2238 |
44 | 2536 |
45 | -2858 |
46 | 3205 |
47 | -3602 |
48 | 4063 |
49 | -4560 |
50 | 5092 |
51 | -5704 |
52 | 6400 |
53 | -7150 |
54 | 7966 |
[1,-2,1,-2,4,-4,5,-6,9,-12,13,-16,21,-26,29,-36, 46,-54,62,-74,90,-106,122,-142,171,-200,227,-264, 311,-358,408,-470,545,-626,709,-810,933,-1062, 1198,-1362,1555,-1760,1980,-2238,2536,-2858,3205, -3602,4063,-4560,5092,-5704,6400,-7150,7966] |