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 | 3 |
| 5 | 5 |
| 6 | 7 |
| 7 | 9 |
| 8 | 14 |
| 9 | 23 |
| 10 | 129 |
| 11 | 198 |
| 12 | 235 |
| 13 | 275 |
| 14 | 630 |
| 15 | 870 |
| 16 | 1033 |
| 17 | 1290 |
| 18 | 3293 |
| 19 | 3458 |
| 20 | 11466 |
| 21 | 13885 |
| 22 | 25893 |
| 23 | 32186 |
| 24 | 33139 |
| 25 | 58125 |
| 26 | 78929 |
| 27 | 97197 |
| 28 | 121933 |
| 29 | 128422 |
| 30 | 442674 |