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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 19 |
| 2 | 94 |
| 3 | 3542 |
| 4 | 7295 |
| 5 | 318320 |
| 6 | 927130 |
| 7 | 939240 |
| 8 | 688370303 |
| 9 | 7682437410 |
| 10 | 7996237896 |
| 11 | 89594051933 |
[1,19,94,3542,7295,318320,927130,939240,688370303, 7682437410,7996237896,89594051933] |