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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 12 |
| 2 | 382 |
| 3 | 23352 |
| 4 | 2223002 |
| 5 | 318236292 |
| 6 | 63069898582 |
| 7 | 16506522005232 |
[2,12,382,23352,2223002,318236292,63069898582, 16506522005232] |