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| n | a(n) |
|---|---|
| 1 | 144 |
| 2 | 790 |
| 3 | 790 |
| 4 | 3720 |
| 5 | 13259 |
| 6 | 3720 |
| 7 | 18284 |
| 8 | 105639 |
| 9 | 105639 |
| 10 | 18284 |
| 11 | 83776 |
| 12 | 1707200 |
| 13 | 1659924 |
| 14 | 1707200 |
| 15 | 83776 |
| 16 | 389862 |
| 17 | 13980344 |
| 18 | 38387146 |
| 19 | 38387146 |
| 20 | 13980344 |
| 21 | 389862 |
| 22 | 1747320 |
| 23 | 219064013 |
| 24 | 639694176 |
| 25 | 3285354224 |
| 26 | 639694176 |
| 27 | 219064013 |
| 28 | 1747320 |
[144,790,790,3720,13259,3720,18284,105639,105639, 18284,83776,1707200,1659924,1707200,83776,389862, 13980344,38387146,38387146,13980344,389862, 1747320,219064013,639694176,3285354224,639694176, 219064013,1747320] |