The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 112 |
| 4 | 2965 |
| 5 | 111856 |
| 6 | 5528419 |
| 7 | 339433984 |
| 8 | 24965493865 |
| 9 | 2142654088960 |
| 10 | 210377086601311 |
| 11 | 23269631260880896 |
| 12 | 2864038963868253373 |
| 13 | 388330717110688399360 |
| 14 | 57521524729462484086075 |
| 15 | 9242821569458332441378816 |
| 16 | 1601434996324769244061560529 |
[1,1,7,112,2965,111856,5528419,339433984, 24965493865,2142654088960,210377086601311, 23269631260880896,2864038963868253373, 388330717110688399360,57521524729462484086075, 9242821569458332441378816, 1601434996324769244061560529] |