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 | 11 |
| 2 | 22 |
| 3 | 111 |
| 4 | 222 |
| 5 | 1111 |
| 6 | 1212 |
| 7 | 2121 |
| 8 | 2222 |
| 9 | 11111 |
| 10 | 22222 |
| 11 | 111111 |
| 12 | 112112 |
| 13 | 121121 |
| 14 | 121212 |
| 15 | 122122 |
| 16 | 211211 |
| 17 | 212121 |
| 18 | 212212 |
| 19 | 221221 |
| 20 | 222222 |
| 21 | 1111111 |
| 22 | 2222222 |
| 23 | 11111111 |
| 24 | 11121112 |
| 25 | 11211121 |
| 26 | 11221122 |
| 27 | 12111211 |
| 28 | 12121212 |
| 29 | 12211221 |
| 30 | 12221222 |
| 31 | 21112111 |
| 32 | 21122112 |
| 33 | 21212121 |