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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 10 |
| 3 | 100 |
| 4 | 2500 |
| 5 | 224728 |
| 6 | 77611032 |
| 7 | 95603336016 |
| 8 | 411188458873152 |
| 9 | 6215509773143124736 |
| 10 | 334390128406134844422816 |
| 11 | 64839530694681966290325813952 |
| 12 | 45813418110052719651124682371286592 |
[1,2,10,100,2500,224728,77611032,95603336016, 411188458873152,6215509773143124736, 334390128406134844422816, 64839530694681966290325813952, 45813418110052719651124682371286592] |