| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 331 |
| 3 | 331 |
| 4 | 1337 |
| 5 | 2529 |
| 6 | 1337 |
| 7 | 5819 |
| 8 | 19175 |
| 9 | 19175 |
| 10 | 5819 |
| 11 | 25665 |
| 12 | 160005 |
| 13 | 273756 |
| 14 | 160005 |
| 15 | 25665 |
| 16 | 116187 |
| 17 | 1361797 |
| 18 | 4384979 |
| 19 | 4384979 |
| 20 | 1361797 |
| 21 | 116187 |
| 22 | 532185 |
| 23 | 11938523 |
| 24 | 71061267 |
| 25 | 135347721 |
| 26 | 71061267 |
| 27 | 11938523 |
| 28 | 532185 |
| 29 | 2467403 |
| 30 | 105900839 |
[81,331,331,1337,2529,1337,5819,19175,19175,5819, 25665,160005,273756,160005,25665,116187,1361797, 4384979,4384979,1361797,116187,532185,11938523, 71061267,135347721,71061267,11938523,532185, 2467403,105900839] |