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 | 4 |
| 3 | 5 |
| 4 | 12 |
| 5 | 15 |
| 6 | 28 |
| 7 | 33 |
| 8 | 40 |
| 9 | 55 |
| 10 | 44 |
| 11 | 71 |
| 12 | 72 |
| 13 | 105 |
| 14 | 96 |
| 15 | 117 |
| 16 | 152 |
| 17 | 147 |
| 18 | 188 |
| 19 | 225 |
| 20 | 224 |
| 21 | 245 |
| 22 | 276 |
| 23 | 299 |
| 24 | 306 |
| 25 | 353 |
| 26 | 356 |
| 27 | 405 |
| 28 | 416 |
| 29 | 451 |