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 | 7 |
| 6 | 8 |
| 7 | 14 |
| 8 | 50 |
| 9 | 70 |
| 10 | 76 |
| 11 | 223 |
| 12 | 295 |
| 13 | 314 |
| 14 | 2089 |
| 15 | 2905 |
| 16 | 3394 |
| 17 | 3881 |
| 18 | 5113 |
| 19 | 6055 |
| 20 | 7253 |
| 21 | 7994 |
| 22 | 18172 |
| 23 | 18970 |
| 24 | 35005 |
| 25 | 69673 |