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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 8 |
| 3 | 64 |
| 4 | 1016 |
| 5 | 32088 |
| 6 | 2015616 |
| 7 | 251795392 |
| 8 | 62557960608 |
| 9 | 30910705230336 |
| 10 | 30375722012891136 |
| 11 | 59365738339780884224 |
| 12 | 230747318214346232237696 |
| 13 | 1783729427366873970623340032 |
| 14 | 27422864634607243551078662934528 |
[2,8,64,1016,32088,2015616,251795392,62557960608, 30910705230336,30375722012891136, 59365738339780884224,230747318214346232237696, 1783729427366873970623340032, 27422864634607243551078662934528] |