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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 6 |
| 3 | 189 |
| 4 | 30618 |
| 5 | 25332021 |
| 6 | 106698472452 |
| 7 | 2283997201168644 |
| 8 | 248218139523497121576 |
| 9 | 136861610819571430116630660 |
| 10 | 382684747771430768732371981946100 |
| 11 | 5424628155237728987530088501811168904125 |
| 12 | 389729317367139375014273384868937660572301897500 |
[1,1,6,189,30618,25332021,106698472452, 2283997201168644,248218139523497121576, 136861610819571430116630660, 382684747771430768732371981946100, 5424628155237728987530088501811168904125, 389729317367139375014273384868937660572301897500] |