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 | 211 |
| 2 | 12211 |
| 3 | 21121 |
| 4 | 21211 |
| 5 | 22111 |
| 6 | 1121221 |
| 7 | 1212121 |
| 8 | 2121121 |
| 9 | 2211211 |
| 10 | 2221111 |
| 11 | 111221221 |
| 12 | 112212211 |
| 13 | 112221211 |
| 14 | 121211221 |
| 15 | 211122211 |
| 16 | 211212121 |
| 17 | 211222111 |
| 18 | 221112121 |
| 19 | 221212111 |
| 20 | 11122121221 |
| 21 | 11122221211 |
| 22 | 11211221221 |
| 23 | 11212211221 |
| 24 | 11212221121 |
| 25 | 11222112211 |