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| n | a(n) |
|---|---|
| 1 | 257 |
| 2 | 277 |
| 3 | 487 |
| 4 | 1267389841 |
| 5 | 50491808745015763381 |
| 6 | 1008407509171875041482378381 |
| 7 | 429215532868726286171043772444743140881 |
| 8 | 4551830726072842264843919206776501006328381 |
[257,277,487,1267389841,50491808745015763381, 1008407509171875041482378381, 429215532868726286171043772444743140881, 4551830726072842264843919206776501006328381] |