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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 152 |
| 3 | 55511 |
| 4 | 41625144 |
| 5 | 56246975289 |
| 6 | 124697847089808 |
| 7 | 423322997436687375 |
| 8 | 2088114588247920714000 |
| 9 | 14363296872939657999716625 |
| 10 | 133299155158711610547152961000 |
| 11 | 1624450039177408057102079622846375 |
| 12 | 25413656551949715361011431877529125000 |
| 13 | 500711137690193661025654228810320074015625 |
[0,1,152,55511,41625144,56246975289, 124697847089808,423322997436687375, 2088114588247920714000,14363296872939657999716625, 133299155158711610547152961000, 1624450039177408057102079622846375, 25413656551949715361011431877529125000, 500711137690193661025654228810320074015625] |