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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 100 |
| 3 | 1496 |
| 4 | 24682 |
| 5 | 433160 |
| 6 | 7932196 |
| 7 | 149846840 |
| 8 | 2898753715 |
| 9 | 57135036024 |
| 10 | 1143315429776 |
| 11 | 23166186450680 |
| 12 | 474347963242860 |
| 13 | 9799792252101016 |
| 14 | 204022381037886400 |
| 15 | 4276098770070159096 |
| 16 | 90151561242584838605 |
| 17 | 1910564646571462338800 |
[1,8,100,1496,24682,433160,7932196,149846840, 2898753715,57135036024,1143315429776, 23166186450680,474347963242860,9799792252101016, 204022381037886400,4276098770070159096, 90151561242584838605,1910564646571462338800] |