| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 47 |
| 3 | 191 |
| 4 | 239 |
| 5 | 307 |
| 6 | 463 |
| 7 | 499 |
| 8 | 701 |
| 9 | 743 |
| 10 | 787 |
| 11 | 853 |
| 12 | 1087 |
| 13 | 1123 |
| 14 | 1301 |
| 15 | 1487 |
| 16 | 1553 |
| 17 | 1567 |
| 18 | 1823 |
| 19 | 2309 |
| 20 | 2621 |
| 21 | 2843 |
| 22 | 2903 |
| 23 | 3083 |
| 24 | 3203 |
| 25 | 3319 |
| 26 | 3323 |
| 27 | 3359 |
| 28 | 3373 |
| 29 | 3541 |
| 30 | 3583 |
| 31 | 3557 |
| 32 | 3617 |
| 33 | 3659 |
| 34 | 3671 |
| 35 | 3727 |
| 36 | 3769 |
| 37 | 3863 |
| 38 | 3947 |
| 39 | 4217 |
| 40 | 4327 |
| 41 | 4373 |
| 42 | 4391 |
[7,47,191,239,307,463,499,701,743,787,853,1087, 1123,1301,1487,1553,1567,1823,2309,2621,2843,2903, 3083,3203,3319,3323,3359,3373,3541,3583,3557,3617, 3659,3671,3727,3769,3863,3947,4217,4327,4373,4391] |