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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 7248 |
| 3 | 936000 |
| 4 | 95520888088 |
| 5 | 99552008880088 |
| 6 | 99955200088800088 |
| 7 | 99995520000888000088 |
[0,7248,936000,95520888088,99552008880088, 99955200088800088,99995520000888000088] |