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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 3432 |
| 3 | 8385127334900305 |
| 4 | 6691944921318182113271713149120 |
| 5 | 560802479516289977082608657662771140464350896000 |
| 6 | 2224408910230139891062284534118773609167351452658037731567555400000 |
[0,3432,8385127334900305, 6691944921318182113271713149120, 560802479516289977082608657662771140464350896000, 22244089102301398910622845341187736091673514526580\ 37731567555400000] |