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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 1296 |
| 3 | 279936 |
| 4 | 1679616 |
| 5 | 10077696 |
| 6 | 60466176 |
| 7 | 13060694016 |
| 8 | 78364164096 |
| 9 | 2821109907456 |
| 10 | 16926659444736 |
| 11 | 101559956668416 |
| 12 | 3656158440062976 |
| 13 | 789730223053602816 |
| 14 | 4738381338321616896 |
| 15 | 28430288029929701376 |
[6,1296,279936,1679616,10077696,60466176, 13060694016,78364164096,2821109907456, 16926659444736,101559956668416,3656158440062976, 789730223053602816,4738381338321616896, 28430288029929701376] |