n | a(n) |
---|---|
0 | 0 |
1 | -1 |
2 | 2684 |
3 | 505 |
4 | 22 |
5 | -1 |
6 | 109 |
7 | 5000005 |
8 | -1 |
9 | -1 |
10 | -1 |
11 | -1 |
12 | 101 |
13 | -1 |
14 | -1 |
15 | 50005 |
16 | -1 |
17 | -1 |
18 | -1 |
19 | -1 |
20 | 20000 |
21 | -1 |
22 | -1 |
23 | -1 |
24 | 100012 |
25 | -1 |
26 | -1 |
27 | -1 |
28 | 4999449 |
29 | -1 |
30 | -1 |
31 | 5000000000000000000000000000005 |
32 | -1 |
[0,-1,2684,505,22,-1,109,5000005,-1,-1,-1,-1,101, -1,-1,50005,-1,-1,-1,-1,20000,-1,-1,-1,100012,-1, -1,-1,4999449,-1,-1, 5000000000000000000000000000005,-1] |