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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 69300 |
| 3 | 9729720 |
| 4 | 4257000 |
| 5 | 967412160 |
| 6 | 4104100000 |
| 7 | 1408951239696000 |
| 8 | 59860503846000000 |
| 9 | 1542547619019487080000 |
| 10 | 39054496014386012160000 |
| 11 | 450510331438947780000000 |
[10,69300,9729720,4257000,967412160,4104100000, 1408951239696000,59860503846000000, 1542547619019487080000,39054496014386012160000, 450510331438947780000000] |