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| n | a(n) |
|---|---|
| 3 | 6 |
| 4 | 384 |
| 5 | 40500 |
| 6 | 6635520 |
| 7 | 1575656250 |
| 8 | 513684799488 |
| 9 | 220582915793352 |
| 10 | 120795955200000000 |
| 11 | 82216552273527680910 |
| 12 | 68109100646400000000000 |
| 13 | 67494804435374515656152124 |
| 14 | 78856224336671036002906669056 |
| 15 | 107280635057716632701242675781250 |
| 16 | 168147940124376203057814634978344960 |
[6,384,40500,6635520,1575656250,513684799488, 220582915793352,120795955200000000, 82216552273527680910,68109100646400000000000, 67494804435374515656152124, 78856224336671036002906669056, 107280635057716632701242675781250, 168147940124376203057814634978344960] |