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 | 0 |
| 2 | 1 |
| 3 | 10 |
| 4 | 91 |
| 5 | 500 |
| 6 | 3119 |
| 7 | 13818 |
| 8 | 59174 |
| 9 | 211135 |
| 10 | 742330 |
| 11 | 2464208 |
| 12 | 7616100 |
| 13 | 19241477 |
| 14 | 56562573 |