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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 16 |
| 3 | 2 |
| 4 | 19683 |
| 5 | 81 |
| 6 | 3 |
| 7 | 4294967296 |
| 8 | 262144 |
| 9 | 256 |
| 10 | 4 |
| 11 | 298023223876953125 |
| 12 | 152587890625 |
| 13 | 1953125 |
| 14 | 625 |
| 15 | 5 |
| 16 | 10314424798490535546171949056 |
| 17 | 28430288029929701376 |
| 18 | 2821109907456 |
| 19 | 10077696 |
| 20 | 1296 |
| 21 | 6 |
[1,16,2,19683,81,3,4294967296,262144,256,4, 298023223876953125,152587890625,1953125,625,5, 10314424798490535546171949056, 28430288029929701376,2821109907456,10077696,1296, 6] |