n | a(n) |
---|---|
1 | 2 |
2 | 3 |
3 | 5 |
4 | 7 |
5 | 23 |
6 | 37 |
7 | 223 |
8 | 227 |
9 | 233 |
10 | 257 |
11 | 277 |
12 | 337 |
13 | 557 |
14 | 577 |
15 | 2237 |
16 | 2333 |
17 | 2357 |
18 | 2377 |
19 | 2557 |
20 | 2777 |
21 | 3557 |
22 | 5557 |
23 | 22277 |
24 | 22777 |
25 | 23333 |
26 | 23357 |
27 | 23557 |
28 | 25577 |
29 | 33377 |
30 | 33577 |
31 | 222337 |
32 | 222557 |
33 | 223337 |
34 | 223577 |
35 | 233357 |
36 | 233557 |
37 | 233777 |
38 | 235577 |
39 | 333337 |
40 | 335557 |
41 | 355777 |
[2,3,5,7,23,37,223,227,233,257,277,337,557,577, 2237,2333,2357,2377,2557,2777,3557,5557,22277, 22777,23333,23357,23557,25577,33377,33577,222337, 222557,223337,223577,233357,233557,233777,235577, 333337,335557,355777] |