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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 43 |
| 7 | 1 |
| 8 | 41 |
| 9 | 53 |
| 10 | 91 |
| 11 | 317 |
| 12 | 317 |
| 13 | 43 |
| 14 | 1 |
| 15 | 37 |
| 16 | 3595 |
| 17 | 563 |
| 18 | 17239 |
| 19 | 911 |
| 20 | 11497 |
| 21 | 58501 |
| 22 | 1259 |
| 23 | 10283 |
| 24 | 138569 |
| 25 | 72247 |
| 26 | 27733 |
| 27 | 11777 |
| 28 | 179105 |