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| n | a(n) |
|---|---|
| 0 | 256 |
| 1 | 815730721 |
| 2 | 110075314176 |
| 3 | 2251875390625 |
| 4 | 20047612231936 |
| 5 | 111429157112001 |
| 6 | 457163239653376 |
| 7 | 1517108809906561 |
| 8 | 4304672100000000 |
| 9 | 10828567056280801 |
| 10 | 24759631762948096 |
| 11 | 52389094428262881 |
[256,815730721,110075314176,2251875390625, 20047612231936,111429157112001,457163239653376, 1517108809906561,4304672100000000, 10828567056280801,24759631762948096, 52389094428262881] |