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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 134217728 |
| 2 | 38443359375 |
| 3 | 1207269217792 |
| 4 | 14507145975869 |
| 5 | 101559956668416 |
| 6 | 502592611936843 |
| 7 | 1953125000000000 |
| 8 | 6351461955384057 |
| 9 | 18014398509481984 |
| 10 | 45848500718449031 |
| 11 | 106868920913284608 |
| 12 | 231616946283203125 |
[1,134217728,38443359375,1207269217792, 14507145975869,101559956668416,502592611936843, 1953125000000000,6351461955384057, 18014398509481984,45848500718449031, 106868920913284608,231616946283203125] |