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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 46 |
| 4 | 5547 |
| 5 | 1241628 |
| 6 | 447041205 |
| 7 | 236032398090 |
| 8 | 171832342201695 |
| 9 | 164958902421881400 |
| 10 | 201909733543855989225 |
| 11 | 306902783112141390315750 |
| 12 | 567156347906609067457417875 |
| 13 | 1252281213909270325492296700500 |
| 14 | 3255931157464155279716218995508125 |
[0,0,1,46,5547,1241628,447041205,236032398090, 171832342201695,164958902421881400, 201909733543855989225,306902783112141390315750, 567156347906609067457417875, 1252281213909270325492296700500, 3255931157464155279716218995508125] |