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| n | a(n) |
|---|---|
| 1 | 4662857360 |
| 2 | 19483897303054057473600 |
| 3 | 177485739636656023698217362159890000 |
| 4 | 2255071025881975002973276574847623754650721480000 |
| 5 | 34489400617513696317244454709620842599380338820310459110031360 |
[4662857360,19483897303054057473600, 177485739636656023698217362159890000, 2255071025881975002973276574847623754650721480000, 34489400617513696317244454709620842599380338820310\ 459110031360] |