n | a(n) |
---|---|
1 | 1 |
2 | 23 |
3 | 456 |
4 | 7891 |
5 | 23456 |
6 | 789123 |
7 | 4567891 |
8 | 23456789 |
9 | 123456789 |
10 | 1234567891 |
11 | 23456789123 |
12 | 456789123456 |
13 | 7891234567891 |
14 | 23456789123456 |
15 | 789123456789123 |
16 | 4567891234567891 |
17 | 23456789123456789 |
18 | 123456789123456789 |
[1,23,456,7891,23456,789123,4567891,23456789, 123456789,1234567891,23456789123,456789123456, 7891234567891,23456789123456,789123456789123, 4567891234567891,23456789123456789, 123456789123456789] |