The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 4 | 2426 |
| 5 | 43664 |
| 6 | 709682 |
| 7 | 11039864 |
| 8 | 168395306 |
| 9 | 2545615904 |
| 10 | 38322357602 |
| 11 | 575803142024 |
| 12 | 8643824410586 |
| 13 | 129704815623344 |
| 14 | 1945904406111122 |
| 15 | 29190891370520984 |
| 16 | 437879647739376266 |
| 17 | 6568308657050321984 |
| 18 | 98525427444538818242 |
| 19 | 1477886994795768920744 |
[2426,43664,709682,11039864,168395306,2545615904, 38322357602,575803142024,8643824410586, 129704815623344,1945904406111122, 29190891370520984,437879647739376266, 6568308657050321984,98525427444538818242, 1477886994795768920744] |