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n | a(n) |
---|---|
1 | 1 |
2 | 81 |
3 | 19881 |
4 | 1926419881 |
5 | 121775642151926419881 |
6 | 235039690681119003888121775642151926419881 |
7 | 36607881966437971419803962177283371311043235039690681119003888121775642151926419881 |
[1,81,19881,1926419881,121775642151926419881, 235039690681119003888121775642151926419881, 36607881966437971419803962177283371311043235039690\ 681119003888121775642151926419881] |