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 | 6 |
| 5 | 9 |
| 6 | 25 |
| 7 | 76 |
| 8 | 302 |
| 9 | 1360 |
| 10 | 7606 |
| 11 | 49313 |
| 12 | 368568 |
| 13 | 3046968 |