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 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 14 |
| 5 | 29 |
| 6 | 79 |
| 7 | 96 |
| 8 | 261 |
| 9 | 8765 |
| 10 | 17411 |
| 11 | 108965 |
| 12 | 583104 |
| 13 | 833851 |
| 14 | 1692693 |
| 15 | 2064173 |
| 16 | 4146167 |
| 17 | 4594140 |
| 18 | 12861320 |
| 19 | 46464264 |
| 20 | 54336595 |
| 21 | 54528830 |
| 22 | 364469152 |
| 23 | 1175842443 |
| 24 | 1430841730 |
| 25 | 9167724225 |
| 26 | 40752166709 |
| 27 | 46787073630 |
| 28 | 128693978358 |
| 29 | 129532358256 |
| 30 | 6194978274594 |