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 | 6 |
| 3 | 13 |
| 4 | 19 |
| 5 | 21 |
| 6 | 62 |
| 7 | 64 |
| 8 | 83 |
| 9 | 94 |
| 10 | 112 |
| 11 | 120 |
| 12 | 142 |
| 13 | 144 |
| 14 | 301 |
| 15 | 306 |
| 16 | 311 |
| 17 | 322 |
| 18 | 338 |
| 19 | 357 |