The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4182 |
| 3 | 4879 |
| 4 | 122664360 |
| 5 | 315870765 |
| 6 | 4621320120 |
| 7 | 5006430130 |
| 8 | 20245909880 |
| 9 | 220899101736 |
| 10 | 239307360214 |
| 11 | 812593845485 |
[1,4182,4879,122664360,315870765,4621320120, 5006430130,20245909880,220899101736,239307360214, 812593845485] |