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 | 12 |
| 2 | 21 |
| 3 | 115 |
| 4 | 511 |
| 5 | 1112 |
| 6 | 1121 |
| 7 | 1211 |
| 8 | 11711 |
| 9 | 13111 |
| 10 | 17111 |
| 11 | 31111 |
| 12 | 71111 |
| 13 | 111112 |
| 14 | 121111 |
| 15 | 211111 |
| 16 | 1111115 |
| 17 | 1111117 |
| 18 | 1111171 |
| 19 | 1111511 |
| 20 | 1115111 |
| 21 | 1151111 |
| 22 | 1511111 |
| 23 | 1711111 |
| 24 | 5111111 |
| 25 | 7111111 |
| 26 | 111111115 |
| 27 | 111111151 |
| 28 | 111111311 |
| 29 | 111111511 |
| 30 | 111115111 |
| 31 | 111131111 |
| 32 | 111151111 |