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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 5632 |
| 3 | 119232 |
| 4 | 2440692 |
| 5 | 47091780 |
| 6 | 890824020 |
| 7 | 16551428868 |
| 8 | 303527605644 |
| 9 | 5505540489756 |
| 10 | 98960332779288 |
| 11 | 1765177724896272 |
| 12 | 31280718324457188 |
| 13 | 551219288985891468 |
| 14 | 9666198588289311180 |
| 15 | 168785901193243289256 |
[0,5632,119232,2440692,47091780,890824020, 16551428868,303527605644,5505540489756, 98960332779288,1765177724896272,31280718324457188, 551219288985891468,9666198588289311180, 168785901193243289256] |