The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 9 | 1 |
| 10 | 435848050 |
| 11 | 170967170463507055 |
| 12 | 66327168553990994916016300 |
| 13 | 25700421225173962543056800181928315 |
| 14 | 9957038381881749517654238255938525131005050 |
| 15 | 3857567937595016308705834953070576178084351138070085 |
[1,435848050,170967170463507055, 66327168553990994916016300, 25700421225173962543056800181928315, 9957038381881749517654238255938525131005050, 38575679375950163087058349530705761780843511380700\ 85] |