n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 12 |
3 | 123 |
4 | 1234 |
5 | 12345 |
6 | 123456 |
7 | 1234567 |
8 | 12345678 |
9 | 123456789 |
10 | 1234567890 |
11 | 12345678901 |
12 | 123456789012 |
13 | 1234567890123 |
14 | 12345678901234 |
15 | 123456789012345 |
16 | 1234567890123456 |
17 | 12345678901234567 |
18 | 123456789012345678 |
[0,1,12,123,1234,12345,123456,1234567,12345678, 123456789,1234567890,12345678901,123456789012, 1234567890123,12345678901234,123456789012345, 1234567890123456,12345678901234567, 123456789012345678] |