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| n | a(n) |
|---|---|
| 1 | 48 |
| 2 | 432 |
| 3 | 7776 |
| 4 | 279936 |
| 5 | 18475776 |
| 6 | 2235568896 |
| 7 | 491825157120 |
| 8 | 196730062848000 |
| 9 | 145580246507520000 |
| 10 | 199299357468794880000 |
| 11 | 501437183391487918080000 |
| 12 | 2318645536002240133201920000 |
| 13 | 19708487056019041132216320000000 |
[48,432,7776,279936,18475776,2235568896, 491825157120,196730062848000,145580246507520000, 199299357468794880000,501437183391487918080000, 2318645536002240133201920000, 19708487056019041132216320000000] |