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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 1 |
| 4 | 6 |
| 5 | 100 |
| 6 | 3375 |
| 7 | 194481 |
| 8 | 17210368 |
| 9 | 2176782336 |
| 10 | 373669453125 |
| 11 | 83733937890625 |
| 12 | 23762680013799936 |
| 13 | 8335775831236199424 |
| 14 | 3543686674874777831491 |
| 15 | 1795856326022129150390625 |
| 16 | 1069932053790720000000000000 |
[1,1,6,100,3375,194481,17210368,2176782336, 373669453125,83733937890625,23762680013799936, 8335775831236199424,3543686674874777831491, 1795856326022129150390625, 1069932053790720000000000000] |