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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 5 |
| 6 | 10 |
| 7 | 11 |
| 8 | 28 |
| 9 | 40 |
| 10 | 110 |
| 11 | 124 |
| 12 | 826 |
| 13 | 871 |
| 14 | 1355 |
| 15 | 1540 |
| 16 | 2285 |
| 17 | 8908 |
| 18 | 20824 |
| 19 | 31715 |
| 20 | 61655 |
| 21 | 75920 |
| 22 | 96274 |
| 23 | 195871 |
| 24 | 233125 |
| 25 | 242594 |
| 26 | 252760 |
| 27 | 259825 |
| 28 | 349315 |