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 | 2 |
| 2 | 3 |
| 3 | 111 |
| 4 | 131 |
| 5 | 232 |
| 6 | 313 |
| 7 | 414 |
| 8 | 10301 |
| 9 | 12121 |
| 10 | 13331 |
| 11 | 14141 |
| 12 | 20102 |
| 13 | 20302 |
| 14 | 23132 |
| 15 | 24342 |
| 16 | 31313 |
| 17 | 32323 |
| 18 | 33133 |
| 19 | 34143 |
| 20 | 34343 |
| 21 | 40304 |
| 22 | 41114 |
| 23 | 42124 |
| 24 | 43334 |
| 25 | 44144 |
| 26 | 1003001 |
| 27 | 1013101 |
| 28 | 1111111 |
| 29 | 1123211 |
| 30 | 1141411 |
| 31 | 1221221 |
| 32 | 1223221 |
| 33 | 1241421 |
| 34 | 1303031 |
| 35 | 1313131 |
| 36 | 1331331 |
| 37 | 1411141 |