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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1331 |
| 3 | 700227072 |
| 4 | 22676697737363992239 |
| 5 | 1728999927211172788179288 |
| 6 | 256263633328535368685258882625 |
| 7 | 19194114355415391344355399945943513 |
[0,1331,700227072,22676697737363992239, 1728999927211172788179288, 256263633328535368685258882625, 19194114355415391344355399945943513] |