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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 648 |
| 3 | 24074 |
| 4 | 855746 |
| 5 | 31096170 |
| 6 | 1146653592 |
| 7 | 42346212260 |
| 8 | 1557004531014 |
| 9 | 57353100417462 |
| 10 | 2112382332611192 |
| 11 | 77779202686257778 |
| 12 | 2864298209626136384 |
| 13 | 105477500014169550206 |
| 14 | 3884216011047782491710 |
| 15 | 143037133564177615552516 |
[8,648,24074,855746,31096170,1146653592, 42346212260,1557004531014,57353100417462, 2112382332611192,77779202686257778, 2864298209626136384,105477500014169550206, 3884216011047782491710,143037133564177615552516] |