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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 9 |
| 3 | 1035 |
| 4 | 981541 |
| 5 | 4855258305 |
| 6 | 94459713879600 |
| 7 | 5945968652327831925 |
| 8 | 1046591482728407939338275 |
| 9 | 459761347800901006933211075259 |
| 10 | 460129061613105910803354676484897475 |
[1,1,9,1035,981541,4855258305,94459713879600, 5945968652327831925,1046591482728407939338275, 459761347800901006933211075259, 460129061613105910803354676484897475] |