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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 434 |
| 3 | 434 |
| 4 | 2336 |
| 5 | 3240 |
| 6 | 2336 |
| 7 | 12624 |
| 8 | 24340 |
| 9 | 24340 |
| 10 | 12624 |
| 11 | 68064 |
| 12 | 183764 |
| 13 | 255937 |
| 14 | 183764 |
| 15 | 68064 |
| 16 | 366568 |
| 17 | 1379886 |
| 18 | 2712486 |
| 19 | 2712486 |
| 20 | 1379886 |
| 21 | 366568 |
| 22 | 1976940 |
| 23 | 10406596 |
| 24 | 28732972 |
| 25 | 41204198 |
| 26 | 28732972 |
| 27 | 10406596 |
| 28 | 1976940 |
| 29 | 10657560 |
| 30 | 78612538 |
[81,434,434,2336,3240,2336,12624,24340,24340, 12624,68064,183764,255937,183764,68064,366568, 1379886,2712486,2712486,1379886,366568,1976940, 10406596,28732972,41204198,28732972,10406596, 1976940,10657560,78612538] |