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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 63 |
| 3 | 756 |
| 4 | 8268 |
| 5 | 86225 |
| 6 | 880519 |
| 7 | 8898517 |
| 8 | 89471520 |
| 9 | 897248572 |
| 10 | 8985712192 |
| 11 | 89925825853 |
| 12 | 899614672173 |
| 13 | 8997997446679 |
| 14 | 89989593213308 |
| 15 | 899945924502919 |
| 16 | 8999718992342921 |
| 17 | 89998539650321017 |
| 18 | 899992410699128981 |
| 19 | 8999960560129165187 |
| 20 | 89999795045731606967 |
[5,63,756,8268,86225,880519,8898517,89471520, 897248572,8985712192,89925825853,899614672173, 8997997446679,89989593213308,899945924502919, 8999718992342921,89998539650321017, 899992410699128981,8999960560129165187, 89999795045731606967] |