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) |
|---|---|
| 2 | 3 |
| 3 | 5 |
| 4 | 14 |
| 5 | 133 |
| 6 | 706 |
| 7 | 2490 |
| 8 | 24258 |
| 9 | 217230 |
| 10 | 2992890 |
| 11 | 24674730 |
| 12 | 647850030 |
| 13 | 4208072190 |
| 14 | 82417704810 |