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 | 0 |
| 2 | 1 |
| 3 | 6 |
| 4 | 7 |
| 5 | 9 |
| 6 | 11 |
| 7 | 17 |
| 8 | 19 |
| 9 | 43 |
| 10 | 73 |
| 11 | 75 |
| 12 | 80 |
| 13 | 88 |
| 14 | 96 |
| 15 | 107 |
| 16 | 131 |
| 17 | 166 |
| 18 | 193 |
| 19 | 201 |
| 20 | 258 |
| 21 | 263 |
| 22 | 268 |
| 23 | 271 |
| 24 | 298 |
| 25 | 335 |
| 26 | 340 |
| 27 | 443 |
| 28 | 479 |
| 29 | 484 |
| 30 | 527 |