n | a(n) |
---|---|
1 | 5 |
2 | 7 |
3 | 67 |
4 | 557 |
5 | 577 |
6 | 677 |
7 | 757 |
8 | 5557 |
9 | 5657 |
10 | 6577 |
11 | 7577 |
12 | 7757 |
13 | 55667 |
14 | 56767 |
15 | 57557 |
16 | 57667 |
17 | 65557 |
18 | 65657 |
19 | 65677 |
20 | 65777 |
21 | 67567 |
22 | 67577 |
23 | 67757 |
24 | 67777 |
25 | 75557 |
26 | 75577 |
27 | 75767 |
28 | 76667 |
29 | 76757 |
30 | 76777 |
31 | 77557 |
32 | 555557 |
33 | 555677 |
34 | 555767 |
35 | 557567 |
36 | 565567 |
37 | 565667 |
38 | 566557 |
39 | 566567 |
[5,7,67,557,577,677,757,5557,5657,6577,7577,7757, 55667,56767,57557,57667,65557,65657,65677,65777, 67567,67577,67757,67777,75557,75577,75767,76667, 76757,76777,77557,555557,555677,555767,557567, 565567,565667,566557,566567] |