The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 52 |
| 2 | 21028 |
| 3 | 1258392 |
| 4 | 133370844 |
| 5 | 16571687222 |
| 6 | 1822875311878 |
| 7 | 206279107863030 |
| 8 | 23670062611992688 |
| 9 | 2692960454212533604 |
| 10 | 306758271216764263660 |
| 11 | 34985557565661268777168 |
| 12 | 3987595250836956206029738 |
[52,21028,1258392,133370844,16571687222, 1822875311878,206279107863030,23670062611992688, 2692960454212533604,306758271216764263660, 34985557565661268777168,3987595250836956206029738] |