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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 1225 |
| 4 | 1656369 |
| 5 | 44604646326241 |
| 6 | 99356606870240615081050533361 |
| 7 | 198013920418138539775713504657052494285395323276110397576890625 |
[1,9,1225,1656369,44604646326241, 99356606870240615081050533361, 19801392041813853977571350465705249428539532327611\ 0397576890625] |