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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 325 |
| 5 | 164073 |
| 6 | 23835564403 |
| 7 | 509747166181000498873 |
| 8 | 590605960011761211516665913403247265840072 |
| 9 | 493340534610970903685535778248091335992630045997033895220604001625216391426083646793 |
[1,2,5,325,164073,23835564403, 509747166181000498873, 590605960011761211516665913403247265840072, 49334053461097090368553577824809133599263004599703\ 3895220604001625216391426083646793] |