The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 12 |
| 3 | 288 |
| 4 | 26880 |
| 5 | 10035200 |
| 6 | 14836039680 |
| 7 | 87734404251648 |
| 8 | 2064716402685640704 |
| 9 | 194361783607326689722368 |
| 10 | 72958995691997968023051829248 |
| 11 | 109548594452892660460226753134067712 |
| 12 | 656593430123179564638165745256190909087744 |
| 13 | 15741504841171021653720624575980053578961033101312 |
[1,2,12,288,26880,10035200,14836039680, 87734404251648,2064716402685640704, 194361783607326689722368, 72958995691997968023051829248, 109548594452892660460226753134067712, 656593430123179564638165745256190909087744, 15741504841171021653720624575980053578961033101312\ ] |