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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 11 |
| 3 | 41867 |
| 4 | 517934206090276988507 |
| 5 | 42635439758725572299058305546953458030363703549127905691758491973278624456679699932948789006991639715987 |
[1,1,11,41867,517934206090276988507, 42635439758725572299058305546953458030363703549127\ 90569175849197327862445667969993294878900699163971\ 5987] |