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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2056 |
| 3 | 265761 |
| 4 | 8388736 |
| 5 | 122070625 |
| 6 | 1088391816 |
| 7 | 6920644801 |
| 8 | 34359740416 |
| 9 | 141214771521 |
| 10 | 500000005000 |
| 11 | 1569214195681 |
| 12 | 4458050234496 |
| 13 | 11649042575521 |
| 14 | 28346956206856 |
| 15 | 64873168970625 |
| 16 | 140737488388096 |
| 17 | 291311118656641 |
[0,1,2056,265761,8388736,122070625,1088391816, 6920644801,34359740416,141214771521,500000005000, 1569214195681,4458050234496,11649042575521, 28346956206856,64873168970625,140737488388096, 291311118656641] |