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A368623 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 108 |
| 3 | 11286 |
| 4 | 2337984 |
| 5 | 804305700 |
| 6 | 414285404544 |
| 7 | 298436020283016 |
| 8 | 286455044544970752 |
| 9 | 353358684943164351792 |
| 10 | 544692796454778554880000 |
| 11 | 1025983872949208210500475232 |
| 12 | 2318663822077115453077590638592 |
| 13 | 6191980828123077577798830642106944 |
| 14 | 19289639610614384872295428226588737536 |
[1,3,108,11286,2337984,804305700,414285404544, 298436020283016,286455044544970752, 353358684943164351792,544692796454778554880000, 1025983872949208210500475232, 2318663822077115453077590638592, 6191980828123077577798830642106944, 19289639610614384872295428226588737536] |