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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 32400 |
| 2 | 221921280 |
| 3 | 131023800192 |
| 4 | 38710991748930 |
| 5 | 1839487795001024 |
| 6 | 71091010320744928 |
| 7 | 681286019507189376 |
[1,32400,221921280,131023800192,38710991748930, 1839487795001024,71091010320744928, 681286019507189376] |