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| n | a(n) |
|---|---|
| 1 | 24 |
| 2 | 216 |
| 3 | 2880 |
| 4 | 67944 |
| 5 | 2791080 |
| 6 | 206195280 |
| 7 | 27196042704 |
| 8 | 6437088838008 |
| 9 | 2723887997403024 |
| 10 | 2064821553536444652 |
| 11 | 2798458452635665138464 |
[24,216,2880,67944,2791080,206195280,27196042704, 6437088838008,2723887997403024, 2064821553536444652,2798458452635665138464] |