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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 14080 |
| 3 | 539568 |
| 4 | 14461173 |
| 5 | 342532665 |
| 6 | 7551515197 |
| 7 | 159377253183 |
| 8 | 3259483737876 |
| 9 | 65096269054893 |
| 10 | 1275742582477605 |
| 11 | 24619023091178172 |
| 12 | 469011723417138726 |
| 13 | 8837860575136215933 |
| 14 | 164977425368113931622 |
| 15 | 3054546692947278299664 |
[0,14080,539568,14461173,342532665,7551515197, 159377253183,3259483737876,65096269054893, 1275742582477605,24619023091178172, 469011723417138726,8837860575136215933, 164977425368113931622,3054546692947278299664] |