n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | -1 |
4 | 3 |
5 | -1 |
6 | 5 |
7 | -1 |
8 | -1 |
9 | -1 |
10 | 7 |
11 | -1 |
12 | 13 |
13 | -1 |
14 | -1 |
15 | -1 |
16 | 23 |
17 | -1 |
18 | -1 |
19 | -1 |
20 | 43 |
21 | -1 |
22 | -1 |
23 | -1 |
24 | 83 |
25 | -1 |
26 | -1 |
27 | -1 |
28 | 163 |
29 | -1 |
30 | -1 |
31 | -1 |
32 | -1 |
33 | -1 |
34 | -1 |
35 | -1 |
36 | -1 |
37 | -1 |
38 | 317 |
39 | -1 |
40 | -1 |
41 | -1 |
42 | 631 |
43 | -1 |
44 | -1 |
45 | -1 |
46 | 1259 |
47 | -1 |
48 | -1 |
49 | -1 |
50 | -1 |
51 | -1 |
52 | -1 |
53 | -1 |
54 | -1 |
55 | -1 |
56 | -1 |
57 | -1 |
58 | -1 |
59 | -1 |
60 | -1 |
61 | -1 |
62 | 2503 |
63 | -1 |
64 | -1 |
65 | -1 |
66 | 5003 |
67 | -1 |
68 | -1 |
69 | -1 |
70 | -1 |
71 | -1 |
72 | -1 |
73 | -1 |
74 | -1 |
75 | -1 |
76 | -1 |
77 | -1 |
78 | -1 |
79 | -1 |
80 | -1 |
[1,2,-1,3,-1,5,-1,-1,-1,7,-1,13,-1,-1,-1,23,-1,-1, -1,43,-1,-1,-1,83,-1,-1,-1,163,-1,-1,-1,-1,-1,-1, -1,-1,-1,317,-1,-1,-1,631,-1,-1,-1,1259,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,2503,-1,-1,-1, 5003,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1] |