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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 25 |
| 3 | 1190 |
| 4 | 11002099 |
| 5 | 160798827205002 |
| 6 | 81283461526686313602192413062 |
| 7 | 33667572983043276783735961062778516567468681693615152318331 |
[4,25,1190,11002099,160798827205002, 81283461526686313602192413062, 33667572983043276783735961062778516567468681693615\ 152318331] |