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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 8 |
| 3 | 111 |
| 4 | 2332 |
| 5 | 66125 |
| 6 | 2368086 |
| 7 | 102616759 |
| 8 | 5222638856 |
| 9 | 305436798009 |
| 10 | 20186656927210 |
| 11 | 1488021110087171 |
| 12 | 121044207712073196 |
| 13 | 10771321471267219525 |
| 14 | 1040877104088653696606 |
| 15 | 108549742436141933697135 |
| 16 | 12151467262433697322437136 |
| 17 | 1453367472748861203540942065 |
[1,1,8,111,2332,66125,2368086,102616759, 5222638856,305436798009,20186656927210, 1488021110087171,121044207712073196, 10771321471267219525,1040877104088653696606, 108549742436141933697135, 12151467262433697322437136, 1453367472748861203540942065] |