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