The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 27 |
| 3 | 7560 |
| 4 | 20096706 |
| 5 | 469234550400 |
| 6 | 91647719244727380 |
| 7 | 144882476551619079125580 |
| 8 | 1810530857631422460202014819060 |
| 9 | 175700644017711682078282449152774420640 |
| 10 | 130588994626958481587169008526902476575988659000 |
| 11 | 735177542920409283519725843348729064179058776531183808000 |
[1,1,27,7560,20096706,469234550400, 91647719244727380,144882476551619079125580, 1810530857631422460202014819060, 175700644017711682078282449152774420640, 130588994626958481587169008526902476575988659000, 73517754292040928351972584334872906417905877653118\ 3808000] |