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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 3 |
| 3 | 4 |
| 4 | 346 |
| 5 | 13279 |
| 6 | 1100030 |
| 7 | 217640633 |
| 8 | 80851458613 |
| 9 | 58581875264320 |
[0,3,4,346,13279,1100030,217640633,80851458613, 58581875264320] |