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| n | a(n) |
|---|---|
| 1 | 7920 |
| 2 | 59440 |
| 3 | 455832 |
| 4 | 4097024 |
| 5 | 37974312 |
| 6 | 389559628 |
| 7 | 4063204904 |
| 8 | 45100814568 |
| 9 | 501030842392 |
| 10 | 5792456074928 |
| 11 | 66350084305560 |
| 12 | 782242974657312 |
| 13 | 9089302555320488 |
| 14 | 108144697929807660 |
| 15 | 1264930350635066256 |
[7920,59440,455832,4097024,37974312,389559628, 4063204904,45100814568,501030842392,5792456074928, 66350084305560,782242974657312,9089302555320488, 108144697929807660,1264930350635066256] |