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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 32 |
| 3 | 1 |
| 4 | 7989 |
| 5 | 47575 |
| 6 | 6168942 |
| 7 | 128008894 |
| 8 | 7397024874 |
| 9 | 230155001514 |
| 10 | 10327814910274 |
| 11 | 371431279822219 |
| 12 | 15248920060907161 |
| 13 | 578165237441492848 |
[0,32,1,7989,47575,6168942,128008894,7397024874, 230155001514,10327814910274,371431279822219, 15248920060907161,578165237441492848] |