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 | 13 |
| 4 | 23 |
| 5 | 113 |
| 6 | 223 |
| 7 | 323 |
| 8 | 1223 |
| 9 | 2113 |
| 10 | 3323 |
| 11 | 21223 |
| 12 | 32113 |
| 13 | 33323 |
| 14 | 233323 |
| 15 | 321223 |
| 16 | 333323 |