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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 324 |
| 4 | 589764 |
| 5 | 52393770000 |
| 6 | 347773153451938500 |
| 7 | 244632735619259069507040000 |
| 8 | 24547871392966749661547369532868031040 |
| 9 | 455140097017244017295446005144727669016636127744000 |
| 10 | 1960564895414510364772369567330640938816177001699555385515625000000 |
[1,5,324,589764,52393770000,347773153451938500, 244632735619259069507040000, 24547871392966749661547369532868031040, 45514009701724401729544600514472766901663612774400\ 0, 19605648954145103647723695673306409388161770016995\ 55385515625000000] |