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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 52 |
| 3 | 28564 |
| 4 | 165770032 |
| 5 | 10164078082036 |
| 6 | 6584229526795818280 |
| 7 | 45062665956031451017237456 |
| 8 | 3258395057698765483724093981321824 |
| 9 | 2489232886416012985921659124731697904597044 |
| 10 | 20091032492258710696689787524926465967570325433558752 |
[1,52,28564,165770032,10164078082036, 6584229526795818280,45062665956031451017237456, 3258395057698765483724093981321824, 2489232886416012985921659124731697904597044, 20091032492258710696689787524926465967570325433558\ 752] |