This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 108 |
| 3 | 1107 |
| 4 | 11106 |
| 5 | 111105 |
| 6 | 1111104 |
| 7 | 11111103 |
| 8 | 111111102 |
| 9 | 1111111101 |
| 10 | 11111111100 |
| 11 | 111111111099 |
| 12 | 1111111111098 |
| 13 | 11111111111097 |
| 14 | 111111111111096 |
| 15 | 1111111111111095 |
| 16 | 11111111111111094 |
| 17 | 111111111111111093 |
| 18 | 1111111111111111092 |
| 19 | 11111111111111111091 |