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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 6 |
| 3 | 203 |
| 4 | 40222 |
| 5 | 46410442 |
| 6 | 312163223724 |
| 7 | 12237378320283699 |
| 8 | 2796071362211148193590 |
| 9 | 3723566980632561787914135870 |
| 10 | 28901575272390972687956930234335380 |
| 11 | 1307480498356321410289575304307661963042110 |
| 12 | 344746842780849469098742541704318199701366091840620 |
[1,1,6,203,40222,46410442,312163223724, 12237378320283699,2796071362211148193590, 3723566980632561787914135870, 28901575272390972687956930234335380, 1307480498356321410289575304307661963042110, 34474684278084946909874254170431819970136609184062\ 0] |