n | a(n) |
---|---|
1 | 7 |
2 | 79 |
3 | 79999 |
4 | 799999 |
5 | 799999999 |
6 | 79999999999 |
7 | 79999999999999999999999999 |
8 | 79999999999999999999999999999999999999999999999999 |
9 | 79999999999999999999999999999999999999999999999999999999999999999999999999999 |
[7,79,79999,799999,799999999,79999999999, 79999999999999999999999999, 79999999999999999999999999999999999999999999999999\ , 79999999999999999999999999999999999999999999999999\ 999999999999999999999999999] |