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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 17 |
| 3 | 871 |
| 4 | 4870849 |
| 5 | 483209576974811 |
| 6 | 36956045653220845240164417232897 |
| 7 | 8498748758632331927648392184620600167779995785955324343380396911247 |
[1,3,17,871,4870849,483209576974811, 36956045653220845240164417232897, 84987487586323319276483921846206001677799957859553\ 24343380396911247] |