n | a(n) |
---|---|
1 | 3 |
2 | 7 |
3 | 37 |
4 | 73 |
5 | 79 |
6 | 97 |
7 | 337 |
8 | 373 |
9 | 379 |
10 | 397 |
11 | 733 |
12 | 739 |
13 | 773 |
14 | 797 |
15 | 937 |
16 | 977 |
17 | 997 |
18 | 3373 |
19 | 3733 |
20 | 3739 |
21 | 3779 |
22 | 3793 |
23 | 3797 |
24 | 7333 |
25 | 7393 |
26 | 7793 |
27 | 7933 |
28 | 7937 |
29 | 7993 |
30 | 9337 |
31 | 9377 |
32 | 9397 |
33 | 9733 |
34 | 9739 |
35 | 9973 |
36 | 33377 |
37 | 33739 |
38 | 33773 |
39 | 33797 |
40 | 33937 |
41 | 33997 |
42 | 37337 |
43 | 37339 |
44 | 37379 |
45 | 37397 |
[3,7,37,73,79,97,337,373,379,397,733,739,773,797, 937,977,997,3373,3733,3739,3779,3793,3797,7333, 7393,7793,7933,7937,7993,9337,9377,9397,9733,9739, 9973,33377,33739,33773,33797,33937,33997,37337, 37339,37379,37397] |