n | a(n) |
---|---|
1 | 1 |
2 | 23 |
3 | 456 |
4 | 7891 |
5 | 1234 |
6 | 567891 |
7 | 123456 |
8 | 78910123 |
9 | 456789101 |
10 | 2345678910 |
11 | 12345678910 |
12 | 123456789101 |
13 | 2345678910123 |
14 | 45678910123456 |
15 | 789101234567891 |
16 | 123456789101234 |
17 | 56789101234567891 |
18 | 12345678910123456 |
19 | 7891012345678910123 |
20 | 45678910123456789101 |
[1,23,456,7891,1234,567891,123456,78910123, 456789101,2345678910,12345678910,123456789101, 2345678910123,45678910123456,789101234567891, 123456789101234,56789101234567891, 12345678910123456,7891012345678910123, 45678910123456789101] |