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 | 0 |
| 1 | 1 |
| 2 | 11 |
| 3 | 100 |
| 4 | 121 |
| 5 | 221 |
| 6 | 1100 |
| 7 | 1211 |
| 8 | 2101 |
| 9 | 10000 |
| 10 | 10201 |
| 11 | 11111 |
| 12 | 12100 |
| 13 | 20021 |
| 14 | 21021 |
| 15 | 22100 |
| 16 | 100111 |
| 17 | 101201 |
| 18 | 110000 |
| 19 | 111101 |
| 20 | 112211 |
| 21 | 121100 |
| 22 | 122221 |
| 23 | 201121 |
| 24 | 210100 |
| 25 | 212011 |
| 26 | 221001 |
| 27 | 1000000 |
| 28 | 1002001 |
| 29 | 1011011 |
| 30 | 1020100 |
| 31 | 1022121 |
| 32 | 1101221 |
| 33 | 1111100 |
| 34 | 1120211 |