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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 84021990 |
| 2 | 27148761423822150 |
| 3 | 9954973275139484047762908 |
| 4 | 3854033460136506985790722290997830 |
| 5 | 1538140504965911180891074089844546665130740 |
| 6 | 625941149813307100769398285275462870937611266492700 |
| 7 | 258199006729578473819424192171981739783714836205236867089400 |
[1,84021990,27148761423822150, 9954973275139484047762908, 3854033460136506985790722290997830, 1538140504965911180891074089844546665130740, 62594114981330710076939828527546287093761126649270\ 0, 25819900672957847381942419217198173978371483620523\ 6867089400] |