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 | 7 |
| 2 | 12 |
| 3 | 67 |
| 4 | 132 |
| 5 | 667 |
| 6 | 1287 |
| 7 | 1332 |
| 8 | 4067 |
| 9 | 6667 |
| 10 | 13287 |
| 11 | 13332 |
| 12 | 66667 |
| 13 | 75932 |
| 14 | 133287 |
| 15 | 133332 |
| 16 | 666667 |
| 17 | 1333287 |
| 18 | 1333332 |
| 19 | 6666667 |
| 20 | 13333287 |
| 21 | 13333332 |
| 22 | 21395692 |
| 23 | 23335692 |
| 24 | 23335932 |
| 25 | 66666667 |
| 26 | 124280507 |
| 27 | 124721912 |
| 28 | 133333287 |
| 29 | 133333332 |