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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | 735 |
| 11 | 18432 |
| 12 | 442368 |
| 13 | 3682784876146817236992 |
[1,2,3,4,5,6,7,8,9,735,18432,442368, 3682784876146817236992] |