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 | 4 |
| 4 | 5 |
| 5 | 17 |
| 6 | 21 |
| 7 | 23 |
| 8 | 28 |
| 9 | 41 |
| 10 | 43 |
| 11 | 51 |
| 12 | 59 |
| 13 | 105 |
| 14 | 115 |
| 15 | 131 |
| 16 | 273 |
| 17 | 585 |
| 18 | 1519 |
| 19 | 2303 |
| 20 | 4791 |
| 21 | 4921 |
| 22 | 6019 |
| 23 | 7833 |
| 24 | 25711 |
| 25 | 27319 |
| 26 | 32497 |
| 27 | 37975 |
| 28 | 49381 |
| 29 | 87199 |