The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 24 |
| 2 | 411 |
| 3 | 68482 |
| 4 | 8718817 |
| 5 | 1305588167 |
| 6 | 272693813849 |
| 7 | 54755346132610 |
[24,411,68482,8718817,1305588167,272693813849, 54755346132610] |