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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 19747 |
| 4 | 9692360769 |
| 5 | 3007399210929125649 |
| 6 | 974293562642242789006882422237 |
| 7 | 492054106680311213790793284550789224583937187 |
| 8 | 540918035328864126384298694506545526610971072745364246025968225 |
[1,13,19747,9692360769,3007399210929125649, 974293562642242789006882422237, 492054106680311213790793284550789224583937187, 54091803532886412638429869450654552661097107274536\ 4246025968225] |