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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 1944 |
| 3 | 81483 |
| 4 | 7259122 |
| 5 | 1421887147 |
| 6 | 486414446352 |
| 7 | 304213100538740 |
| 8 | 404805739208682952 |
[81,1944,81483,7259122,1421887147,486414446352, 304213100538740,404805739208682952] |