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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | -36 |
| 3 | 6201 |
| 4 | -10519740 |
| 5 | 168009075234 |
| 6 | -24937507748845692 |
| 7 | 34147337933260567913832 |
| 8 | -429040882807948915054596365580 |
| 9 | 49262806958277650055073574841789707655 |
[1,3,-36,6201,-10519740,168009075234, -24937507748845692,34147337933260567913832, -429040882807948915054596365580, 49262806958277650055073574841789707655] |