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| n | a(n) |
|---|---|
| 1 | 40 |
| 2 | 3096 |
| 3 | 103296 |
| 4 | 3200604 |
| 5 | 90748696 |
| 6 | 2472983556 |
| 7 | 65284613232 |
| 8 | 1686961414812 |
| 9 | 42866673833128 |
| 10 | 1075244105809044 |
| 11 | 26689182058679264 |
| 12 | 656784781178376396 |
| 13 | 16046367933842361752 |
| 14 | 389645465813128015044 |
| 15 | 9411830636459978769552 |
[40,3096,103296,3200604,90748696,2472983556, 65284613232,1686961414812,42866673833128, 1075244105809044,26689182058679264, 656784781178376396,16046367933842361752, 389645465813128015044,9411830636459978769552] |