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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1897 |
| 3 | 326233 |
| 4 | 27345143 |
| 5 | 2543481662 |
| 6 | 259468310384 |
| 7 | 26219581585508 |
| 8 | 2620294273035729 |
[1,1897,326233,27345143,2543481662,259468310384, 26219581585508,2620294273035729] |