n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 0 |
4 | 0 |
5 | 2 |
6 | -3 |
7 | 1 |
8 | 0 |
9 | 3 |
10 | -5 |
11 | 2 |
12 | 0 |
13 | 4 |
14 | -7 |
15 | 3 |
16 | 0 |
17 | 5 |
18 | -9 |
19 | 4 |
20 | 0 |
21 | 6 |
22 | -11 |
23 | 5 |
24 | 0 |
25 | 7 |
26 | -13 |
27 | 6 |
28 | 0 |
29 | 8 |
30 | -15 |
31 | 7 |
32 | 0 |
33 | 9 |
34 | -17 |
35 | 8 |
36 | 0 |
37 | 10 |
38 | -19 |
39 | 9 |
40 | 0 |
41 | 11 |
42 | -21 |
43 | 10 |
44 | 0 |
45 | 12 |
46 | -23 |
47 | 11 |
48 | 0 |
49 | 13 |
50 | -25 |
51 | 12 |
52 | 0 |
53 | 14 |
54 | -27 |
55 | 13 |
56 | 0 |
57 | 15 |
58 | -29 |
59 | 14 |
60 | 0 |
61 | 16 |
62 | -31 |
63 | 15 |
64 | 0 |
65 | 17 |
66 | -33 |
67 | 16 |
68 | 0 |
69 | 18 |
70 | -35 |
71 | 17 |
72 | 0 |
73 | 19 |
74 | -37 |
75 | 18 |
76 | 0 |
77 | 20 |
78 | -39 |
79 | 19 |
80 | 0 |
81 | 21 |
82 | -41 |
83 | 20 |
[0,1,-1,0,0,2,-3,1,0,3,-5,2,0,4,-7,3,0,5,-9,4,0,6, -11,5,0,7,-13,6,0,8,-15,7,0,9,-17,8,0,10,-19,9,0, 11,-21,10,0,12,-23,11,0,13,-25,12,0,14,-27,13,0, 15,-29,14,0,16,-31,15,0,17,-33,16,0,18,-35,17,0, 19,-37,18,0,20,-39,19,0,21,-41,20] |