The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 2583 |
| 2 | 1196837 |
| 3 | 501622631 |
| 4 | 195675787426 |
| 5 | 71952946981858 |
| 6 | 25239894694049776 |
[2583,1196837,501622631,195675787426, 71952946981858,25239894694049776] |