n | a(n) |
---|---|
1 | 5 |
2 | 7 |
3 | 11 |
4 | 17 |
5 | 71 |
6 | 151 |
7 | 157 |
8 | 557 |
9 | 571 |
10 | 577 |
11 | 751 |
12 | 757 |
13 | 1117 |
14 | 1151 |
15 | 1171 |
16 | 1511 |
17 | 1571 |
18 | 1777 |
19 | 5171 |
20 | 5557 |
21 | 5711 |
22 | 5717 |
23 | 7151 |
24 | 7177 |
25 | 7517 |
26 | 7577 |
27 | 7717 |
28 | 7757 |
29 | 11117 |
30 | 11171 |
31 | 11177 |
32 | 11551 |
33 | 11717 |
34 | 11777 |
35 | 15511 |
36 | 15551 |
37 | 17117 |
38 | 17551 |
39 | 51151 |
40 | 51157 |
41 | 51511 |
42 | 51517 |
43 | 51551 |
44 | 51577 |
[5,7,11,17,71,151,157,557,571,577,751,757,1117, 1151,1171,1511,1571,1777,5171,5557,5711,5717,7151, 7177,7517,7577,7717,7757,11117,11171,11177,11551, 11717,11777,15511,15551,17117,17551,51151,51157, 51511,51517,51551,51577] |