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 | 6 |
| 4 | 19 |
| 5 | 76 |
| 6 | 376 |
| 7 | 2194 |
| 8 | 14614 |
| 9 | 106421 |
| 10 | 823832 |
| 11 | 6657811 |
| 12 | 55557329 |
| 13 | 475475046 |
| 14 | 4155030702 |
| 15 | 36959470662 |
| 16 | 333860366236 |