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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3628801 |
| 2 | 2375880907276801 |
| 3 | 4386797386179342934060801 |
| 4 | 12868640117405297821759744777996801 |
| 5 | 49120459033702373637913562847507823210617601 |
| 6 | 222254155614179529476178258638452174287098861960755201 |
| 7 | 1132660294172702489573582429384603543633942385302181948349459201 |
[1,3628801,2375880907276801, 4386797386179342934060801, 12868640117405297821759744777996801, 49120459033702373637913562847507823210617601, 22225415561417952947617825863845217428709886196075\ 5201, 11326602941727024895735824293846035436339423853021\ 81948349459201] |