The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 5 | 1 |
| 6 | 19608 |
| 7 | 336416907 |
| 8 | 5670690600800 |
| 9 | 95347005938577702 |
| 10 | 1602592475815614015216 |
| 11 | 26935000671139346639437914 |
| 12 | 452697105941691435357049202400 |
| 13 | 7608481579300344488889504665693103 |
| 14 | 127875753071992714335358328311551866824 |
[1,19608,336416907,5670690600800, 95347005938577702,1602592475815614015216, 26935000671139346639437914, 452697105941691435357049202400, 7608481579300344488889504665693103, 127875753071992714335358328311551866824] |