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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 8 |
| 4 | 438 |
| 5 | 75346 |
| 6 | 48463174 |
| 7 | 110728004898 |
| 8 | 879549454424322 |
| 9 | 24425156030389837162 |
| 10 | 2380336656518678938694450 |
| 11 | 814656324267500393611361701060 |
[0,0,8,438,75346,48463174,110728004898, 879549454424322,24425156030389837162, 2380336656518678938694450, 814656324267500393611361701060] |