n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | -1 |
4 | -4 |
5 | -4 |
6 | 1 |
7 | 7 |
8 | 7 |
9 | -1 |
10 | -10 |
11 | -10 |
12 | 1 |
13 | 13 |
14 | 13 |
15 | -1 |
16 | -16 |
17 | -16 |
18 | 1 |
19 | 19 |
20 | 19 |
21 | -1 |
22 | -22 |
23 | -22 |
24 | 1 |
25 | 25 |
26 | 25 |
27 | -1 |
28 | -28 |
29 | -28 |
30 | 1 |
31 | 31 |
32 | 31 |
33 | -1 |
34 | -34 |
35 | -34 |
36 | 1 |
37 | 37 |
38 | 37 |
39 | -1 |
40 | -40 |
41 | -40 |
42 | 1 |
43 | 43 |
44 | 43 |
45 | -1 |
46 | -46 |
47 | -46 |
48 | 1 |
49 | 49 |
50 | 49 |
51 | -1 |
52 | -52 |
53 | -52 |
54 | 1 |
55 | 55 |
56 | 55 |
57 | -1 |
58 | -58 |
59 | -58 |
60 | 1 |
61 | 61 |
62 | 61 |
63 | -1 |
[1,1,1,-1,-4,-4,1,7,7,-1,-10,-10,1,13,13,-1,-16, -16,1,19,19,-1,-22,-22,1,25,25,-1,-28,-28,1,31,31, -1,-34,-34,1,37,37,-1,-40,-40,1,43,43,-1,-46,-46, 1,49,49,-1,-52,-52,1,55,55,-1,-58,-58,1,61,61,-1] |