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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 262144 |
| 2 | 11390625 |
| 3 | 113379904 |
| 4 | 594823321 |
| 5 | 2176782336 |
| 6 | 6321363049 |
| 7 | 15625000000 |
| 8 | 34296447249 |
| 9 | 68719476736 |
| 10 | 128100283921 |
| 11 | 225199600704 |
| 12 | 377149515625 |
| 13 | 606355001344 |
| 14 | 941480149401 |
| 15 | 1418519112256 |
| 16 | 2081951752609 |
[1,262144,11390625,113379904,594823321,2176782336, 6321363049,15625000000,34296447249,68719476736, 128100283921,225199600704,377149515625, 606355001344,941480149401,1418519112256, 2081951752609] |