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 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 11 |
| 6 | 15 |
| 7 | 17 |
| 8 | 33 |
| 9 | 35 |
| 10 | 51 |
| 11 | 57 |
| 12 | 65 |
| 13 | 91 |
| 14 | 105 |
| 15 | 129 |
| 16 | 165 |
| 17 | 195 |
| 18 | 205 |
| 19 | 221 |
| 20 | 255 |
| 21 | 257 |
| 22 | 385 |
| 23 | 451 |
| 24 | 561 |
| 25 | 861 |
| 26 | 897 |
| 27 | 969 |
| 28 | 1615 |