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 | 1 |
| 2 | 121 |
| 3 | 12321 |
| 4 | 1322122321 |
| 5 | 132233322321 |
| 6 | 213223221121 |
| 7 | 13223121322321 |
| 8 | 1212111311221321 |
| 9 | 131332121232312121 |
| 10 | 31121322221111133211321 |
| 11 | 3322133322121313132333322321 |
| 12 | 12232213113321121113332133323121 |
| 13 | 3231221313313311221231322223122312333121 |
| 14 | 311323333121312322332133323111223321313321 |