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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 31 |
| 4 | 1393 |
| 5 | 330361 |
| 6 | 488337121 |
| 7 | 5197945772881 |
| 8 | 452395544496860161 |
| 9 | 360573039112103480718721 |
| 10 | 2914843277842193790386417088001 |
| 11 | 262261378512171017948642290003977004801 |
| 12 | 285983731923953608933716749772942709840131379201 |
[1,1,3,31,1393,330361,488337121,5197945772881, 452395544496860161,360573039112103480718721, 2914843277842193790386417088001, 262261378512171017948642290003977004801, 285983731923953608933716749772942709840131379201] |