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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 487 |
| 3 | 487 |
| 4 | 2581 |
| 5 | 5772 |
| 6 | 2581 |
| 7 | 12373 |
| 8 | 60193 |
| 9 | 60193 |
| 10 | 12373 |
| 11 | 55929 |
| 12 | 544380 |
| 13 | 1290539 |
| 14 | 544380 |
| 15 | 55929 |
| 16 | 241933 |
| 17 | 4505522 |
| 18 | 24143945 |
| 19 | 24143945 |
| 20 | 4505522 |
| 21 | 241933 |
| 22 | 1015889 |
| 23 | 34394854 |
| 24 | 414682711 |
| 25 | 987221751 |
| 26 | 414682711 |
| 27 | 34394854 |
| 28 | 1015889 |
| 29 | 4174941 |
[81,487,487,2581,5772,2581,12373,60193,60193, 12373,55929,544380,1290539,544380,55929,241933, 4505522,24143945,24143945,4505522,241933,1015889, 34394854,414682711,987221751,414682711,34394854, 1015889,4174941] |