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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 24 |
| 5 | 5040 |
| 6 | 40320 |
| 7 | 362880 |
| 8 | 1982608315404440064116146708361898137544773690227268628106279599612729753600000000000000 |
| 9 | 126886932185884164103433389335161480802865516174545192198801894375214704230400000000000000 |
[1,2,6,24,5040,40320,362880, 19826083154044400641161467083618981375447736902272\ 68628106279599612729753600000000000000, 12688693218588416410343338933516148080286551617454\ 5192198801894375214704230400000000000000] |