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| n | a(n) |
|---|---|
| 0 | 5 |
| 1 | 8 |
| 2 | 30 |
| 3 | 360 |
| 4 | 1801800 |
| 5 | 2746644314348614680000 |
| 6 | 13268350773236509446586539974366689358164301703214270074935844483572035447570761114173070859428708074413696096366645684575600000000 |
[5,8,30,360,1801800,2746644314348614680000, 13268350773236509446586539974366689358164301703214\ 27007493584448357203544757076111417307085942870807\ 4413696096366645684575600000000] |