n | a(n) |
---|---|
1 | -1 |
2 | -1 |
3 | 1 |
4 | -1 |
5 | 5 |
6 | -1 |
7 | 3 |
8 | 7 |
9 | 11 |
10 | -1 |
11 | 19 |
12 | -1 |
13 | 5 |
14 | 11 |
15 | 17 |
16 | 23 |
17 | 29 |
18 | -1 |
19 | 13 |
20 | 27 |
21 | 41 |
22 | -1 |
23 | 7 |
24 | 23 |
25 | 31 |
26 | 47 |
27 | 55 |
28 | -1 |
29 | 17 |
30 | 53 |
31 | 71 |
32 | -1 |
33 | 9 |
34 | 19 |
35 | 29 |
36 | 39 |
37 | 49 |
38 | 59 |
39 | 69 |
40 | 79 |
41 | 89 |
42 | -1 |
43 | 43 |
44 | 65 |
45 | 109 |
46 | -1 |
47 | 11 |
48 | 23 |
49 | 35 |
50 | 47 |
51 | 59 |
52 | 71 |
53 | 83 |
54 | 95 |
55 | 107 |
56 | 119 |
57 | 131 |
58 | -1 |
59 | 25 |
60 | 51 |
61 | 103 |
62 | 129 |
63 | 155 |
64 | -1 |
65 | 13 |
[-1,-1,1,-1,5,-1,3,7,11,-1,19,-1,5,11,17,23,29,-1, 13,27,41,-1,7,23,31,47,55,-1,17,53,71,-1,9,19,29, 39,49,59,69,79,89,-1,43,65,109,-1,11,23,35,47,59, 71,83,95,107,119,131,-1,25,51,103,129,155,-1,13] |