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| n | a(n) |
|---|---|
| 1 | 128 |
| 2 | 16384 |
| 3 | 371641 |
| 4 | 9205575 |
| 5 | 151788273 |
| 6 | 2748122586 |
| 7 | 43645304766 |
| 8 | 733660344149 |
| 9 | 11722251157012 |
| 10 | 192737455311869 |
| 11 | 3101316117820858 |
| 12 | 50582965637175513 |
| 13 | 817179337255729430 |
| 14 | 13284346442987716235 |
| 15 | 215031581266863776172 |
[128,16384,371641,9205575,151788273,2748122586, 43645304766,733660344149,11722251157012, 192737455311869,3101316117820858, 50582965637175513,817179337255729430, 13284346442987716235,215031581266863776172] |