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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 10 |
| 5 | 34 |
| 6 | 98 |
| 7 | 339 |
| 8 | 1263 |
| 9 | 4626 |
| 10 | 18099 |
| 11 | 73782 |
| 12 | 306295 |
| 13 | 1319660 |
| 14 | 5844714 |
| 15 | 26481404 |
| 16 | 123172740 |