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) |
|---|---|
| 3 | 1 |
| 4 | 1 |
| 5 | 4 |
| 6 | 6 |
| 7 | 7 |
| 8 | 13 |
| 9 | 19 |
| 10 | 31 |
| 11 | 24 |
| 12 | 76 |
| 13 | 41 |
| 14 | 77 |
| 15 | 116 |
| 16 | 116 |
| 17 | 87 |
| 18 | 226 |
| 19 | 115 |
| 20 | 307 |
| 21 | 276 |
| 22 | 308 |
| 23 | 201 |
| 24 | 671 |
| 25 | 317 |
| 26 | 523 |
| 27 | 478 |
| 28 | 786 |
| 29 | 403 |
| 30 | 1495 |