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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 10 |
| 4 | 91 |
| 5 | 7381 |
| 6 | 604432 |
| 7 | 436445101 |
| 8 | 321656391613 |
| 9 | 2087825044676482 |
| 10 | 13848340772676227455 |
| 11 | 808880048095782179467153 |
| 12 | 48286987465947852695801396608 |
| 13 | 25383561292811993463191359951919785 |
| 14 | 13637696871632801620185917930189837576233 |
[0,1,1,10,91,7381,604432,436445101,321656391613, 2087825044676482,13848340772676227455, 808880048095782179467153, 48286987465947852695801396608, 25383561292811993463191359951919785, 13637696871632801620185917930189837576233] |