The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 43 |
| 3 | 824747 |
| 4 | 3171671 |
| 5 | 767335408183 |
| 6 | 921649796621 |
| 7 | 1367268373487 |
| 8 | 8978321374181 |
| 9 | 35467651791527 |
| 10 | 177538435814203 |
[1,43,824747,3171671,767335408183,921649796621, 1367268373487,8978321374181,35467651791527, 177538435814203] |