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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 168 |
| 2 | 97020 |
| 3 | 76969200 |
| 4 | 70715452500 |
| 5 | 70710926711040 |
| 6 | 74713950839848320 |
| 7 | 82063363963278297600 |
| 8 | 92763657280052631873000 |
| 9 | 107208829261440251585240000 |
| 10 | 126104599836427618807641720480 |
[1,168,97020,76969200,70715452500,70710926711040, 74713950839848320,82063363963278297600, 92763657280052631873000, 107208829261440251585240000, 126104599836427618807641720480] |