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) |
|---|---|
| 0 | 0 |
| 1 | 8 |
| 2 | 15 |
| 3 | 39 |
| 4 | 47 |
| 5 | 109 |
| 6 | 375 |
| 7 | 1591 |
| 8 | 4470 |
| 9 | 4596 |
| 10 | 6393 |
| 11 | 6718 |
| 12 | 7930 |
| 13 | 16439 |
| 14 | 28903 |
| 15 | 34292 |
| 16 | 49465 |
| 17 | 264496 |
| 18 | 265750 |
| 19 | 266126 |
| 20 | 311290 |
| 21 | 2067455 |
| 22 | 16808764 |
| 23 | 18276328 |
| 24 | 1074296036 |
| 25 | 1075478361 |