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| n | a(n) |
|---|---|
| 1 | 123480 |
| 2 | 6933120 |
| 3 | 420545824 |
| 4 | 27425792944 |
| 5 | 1809791149768 |
| 6 | 121396901813560 |
| 7 | 8142073013529816 |
| 8 | 548770608436244800 |
| 9 | 36942499122761432872 |
| 10 | 2491439485029085248096 |
| 11 | 167889440702169327824712 |
[123480,6933120,420545824,27425792944, 1809791149768,121396901813560,8142073013529816, 548770608436244800,36942499122761432872, 2491439485029085248096,167889440702169327824712] |