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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 8192 |
| 3 | 1028335 |
| 4 | 129072576 |
| 5 | 16206294085 |
| 6 | 2034862700902 |
| 7 | 255495837970145 |
| 8 | 32079862886682262 |
| 9 | 4027923603166842813 |
| 10 | 505743077861917510398 |
| 11 | 63500722828808546571017 |
| 12 | 7973103293076638791675836 |
[64,8192,1028335,129072576,16206294085, 2034862700902,255495837970145,32079862886682262, 4027923603166842813,505743077861917510398, 63500722828808546571017,7973103293076638791675836] |