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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 997 |
| 3 | 148041 |
| 4 | 25413205 |
| 5 | 4744544613 |
| 6 | 935728207597 |
| 7 | 191813392024137 |
| 8 | 40462946725744501 |
| 9 | 8726529512888314245 |
| 10 | 1915408781755211655133 |
| 11 | 426478330303800465141669 |
| 12 | 96092667172064808771832957 |
| 13 | 21869171662479233922632691261 |
[1,9,997,148041,25413205,4744544613,935728207597, 191813392024137,40462946725744501, 8726529512888314245,1915408781755211655133, 426478330303800465141669, 96092667172064808771832957, 21869171662479233922632691261] |