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 | 12321 |
| 2 | 123201 |
| 3 | 130321 |
| 4 | 1232100 |
| 5 | 1320201 |
| 6 | 3101121 |
| 7 | 12320100 |
| 8 | 13032100 |
| 9 | 102030201 |
| 10 | 102232321 |
| 11 | 103002201 |
| 12 | 123210000 |
| 13 | 123232201 |
| 14 | 132020100 |
| 15 | 310112100 |
| 16 | 1232010000 |
| 17 | 1303210000 |
| 18 | 1322122321 |
| 19 | 1332323001 |
| 20 | 2103231321 |
| 21 | 10022212321 |
| 22 | 10130221201 |
| 23 | 10203020100 |
| 24 | 10203222121 |