n | a(n) |
---|---|
0 | 0 |
1 | 10 |
2 | 25 |
3 | 39 |
4 | 77 |
5 | 679 |
6 | 6788 |
7 | 68889 |
8 | 2677889 |
9 | 26888999 |
10 | 3778888999 |
11 | 267777777889999 |
12 | 77777777788888888888899999 |
13 | 37777777777777777777777777778888889999999999999999999 |
[0,10,25,39,77,679,6788,68889,2677889,26888999, 3778888999,267777777889999, 77777777788888888888899999, 37777777777777777777777777778888889999999999999999\ 999] |