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 | 1111 |
| 3 | 12221 |
| 4 | 23332 |
| 5 | 34443 |
| 6 | 45554 |
| 7 | 56665 |
| 8 | 67776 |
| 9 | 78887 |
| 10 | 89998 |
| 11 | 101101 |
| 12 | 111111 |
| 13 | 121121 |
| 14 | 131131 |
| 15 | 141141 |
| 16 | 151151 |
| 17 | 161161 |
| 18 | 171171 |
| 19 | 181181 |
| 20 | 191191 |
| 21 | 1020201 |
| 22 | 1121211 |
| 23 | 1222221 |
| 24 | 1323231 |
| 25 | 1424241 |
| 26 | 1525251 |
| 27 | 1626261 |
| 28 | 1727271 |
| 29 | 1828281 |
| 30 | 1929291 |
| 31 | 2030302 |
| 32 | 2131312 |