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 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 16 |
| 5 | 68 |
| 6 | 399 |
| 7 | 3348 |
| 8 | 41417 |
| 9 | 775234 |
| 10 | 22445788 |
| 11 | 1024347395 |
| 12 | 74876701760 |
| 13 | 8888457145166 |
| 14 | 1734062627778860 |