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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 14 |
| 7 | 36 |
| 8 | 121 |
| 9 | 533 |
| 10 | 3067 |
| 11 | 21798 |
| 12 | 180898 |
| 13 | 1648907 |
| 14 | 15977626 |