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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 40320 |
| 2 | 2027025 |
| 3 | 13681123135 |
| 4 | 551211090935595 |
| 5 | 64157120593526429971 |
| 6 | 15388200323143520006870562 |
| 7 | 6273648300104128965616586081511 |
| 8 | 3847028733161627562733350467148495403 |
| 9 | 3264601141014490309682718148875987514642243 |
[1,40320,2027025,13681123135,551211090935595, 64157120593526429971,15388200323143520006870562, 6273648300104128965616586081511, 3847028733161627562733350467148495403, 3264601141014490309682718148875987514642243] |