n | a(n) |
---|---|
1 | 1 |
2 | 12 |
3 | 123 |
4 | 1234 |
5 | 12345 |
6 | 123456 |
7 | 1234567 |
8 | 12345678 |
9 | 123456789 |
10 | 1023456789 |
11 | 11023456789 |
12 | 110123456789 |
13 | 1101213456789 |
14 | 11012131456789 |
15 | 110121314156789 |
16 | 1101213141516789 |
17 | 11012131415161789 |
18 | 110121314151617189 |
19 | 1101213141516171819 |
20 | 11012013141516171819 |
[1,12,123,1234,12345,123456,1234567,12345678, 123456789,1023456789,11023456789,110123456789, 1101213456789,11012131456789,110121314156789, 1101213141516789,11012131415161789, 110121314151617189,1101213141516171819, 11012013141516171819] |