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 | 1 |
| 3 | 1 |
| 4 | 7 |
| 5 | 20 |
| 6 | 28 |
| 7 | 96 |
| 8 | 152 |
| 9 | 185 |
| 10 | 212 |
| 11 | 1179 |
| 12 | 1829 |
| 13 | 2217 |
| 14 | 3382 |
| 15 | 14350 |
| 16 | 30780 |
| 17 | 31528 |
| 18 | 40929 |
| 19 | 103498 |
| 20 | 104047 |
| 21 | 149674 |
| 22 | 325845 |
| 23 | 1094396 |
| 24 | 1319933 |
| 25 | 2850163 |
| 26 | 6957867 |
| 27 | 10539421 |
| 28 | 10655453 |