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 | 39 |
| 3 | 132 |
| 4 | 1332 |
| 5 | 13332 |
| 6 | 41732 |
| 7 | 118387 |
| 8 | 126560 |
| 9 | 133332 |
| 10 | 1241612 |
| 11 | 1333332 |
| 12 | 11905535 |
| 13 | 13333332 |
| 14 | 124970227 |
| 15 | 133333332 |
| 16 | 1333333332 |
| 17 | 11906972812 |
| 18 | 13333333332 |
| 19 | 37418660507 |
| 20 | 37626774267 |
| 21 | 42163256012 |
| 22 | 133333333332 |