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 | 110011 |
| 2 | 111111 |
| 3 | 112211 |
| 4 | 113311 |
| 5 | 114411 |
| 6 | 115511 |
| 7 | 116611 |
| 8 | 117711 |
| 9 | 118811 |
| 10 | 119911 |
| 11 | 220022 |
| 12 | 221122 |
| 13 | 222222 |
| 14 | 223322 |
| 15 | 224422 |
| 16 | 225522 |
| 17 | 226622 |
| 18 | 227722 |
| 19 | 228822 |
| 20 | 229922 |
| 21 | 330033 |
| 22 | 331133 |
| 23 | 332233 |
| 24 | 333333 |
| 25 | 334433 |
| 26 | 335533 |
| 27 | 336633 |
| 28 | 337733 |
| 29 | 338833 |
| 30 | 339933 |
| 31 | 440044 |
| 32 | 441144 |
| 33 | 442244 |