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) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 110 |
| 3 | 1110 |
| 4 | 11210 |
| 5 | 112210 |
| 6 | 1123310 |
| 7 | 11234310 |
| 8 | 112355410 |
| 9 | 1123567410 |
| 10 | 11235798510 |
| 11 | 112358120510 |
| 12 | 1123582462610 |
| 13 | 11235825994610 |
| 14 | 112358272546710 |
| 15 | 1123582739289710 |
| 16 | 11235827519061810 |
| 17 | 112358275329114810 |
| 18 | 1123582754554197910 |
| 19 | 11235827546928570910 |