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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 33 |
| 2 | 8020 |
| 3 | 3301025 |
| 4 | 1733984376 |
| 5 | 1048567813062 |
| 6 | 694995078406056 |
| 7 | 491336887915201185 |
| 8 | 364377975224032162000 |
| 9 | 280380150421755638519408 |
| 10 | 222165159124597435189467696 |
| 11 | 180288439972217748901049985158 |
| 12 | 149230751849318301857448761484400 |
| 13 | 125602423480863080624602495191566250 |
[1,33,8020,3301025,1733984376,1048567813062, 694995078406056,491336887915201185, 364377975224032162000,280380150421755638519408, 222165159124597435189467696, 180288439972217748901049985158, 149230751849318301857448761484400, 125602423480863080624602495191566250] |