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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 8 |
| 4 | 16 |
| 5 | 243 |
| 6 | 729 |
| 7 | 16384 |
| 8 | 65536 |
| 9 | 1953125 |
| 10 | 9765625 |
| 11 | 362797056 |
| 12 | 2176782336 |
| 13 | 96889010407 |
| 14 | 678223072849 |
| 15 | 35184372088832 |
| 16 | 281474976710656 |
| 17 | 16677181699666569 |
| 18 | 150094635296999121 |
| 19 | 10000000000000000000 |
| 20 | 100000000000000000000 |
| 21 | 7400249944258160101211 |
[1,1,8,16,243,729,16384,65536,1953125,9765625, 362797056,2176782336,96889010407,678223072849, 35184372088832,281474976710656,16677181699666569, 150094635296999121,10000000000000000000, 100000000000000000000,7400249944258160101211] |